Heart – Mind – Soul

THE PHYSIOLOGY OF FAITH: A BEREAN INVESTIGATION

To understand why ancient Israelites and first-century Pharisees had “eyes but could not see,” we must view human anatomy as a divine circuit designed by God. The physical body perfectly mirrors the spiritual reality. In this pipeline, the signal originates in the Heart, is processed by the Mind, and manifests as outward behavior in the Soul (what you show the world; your identity).

Let us break down exactly how this biological and spiritual pipeline works across the Old and New Covenants.

PART 1: THE HEART (The Biology, The Soil, and The Signal)

Modern neurocardiology proves that the physical heart has its own intrinsic nervous system (often called the “heart brain“). Biologically, the heart sends more neural signals up to the brain than the brain sends down to the heart. In scripture, the Heart is the soil. It dictates what the mind is allowed to process.

In the Old Covenant, the prophets described a physical hardware failure caused by a spiritual virus:

Deuteronomy 29:4

“But to this day the LORD has not given you a heart to understand or eyes to see or ears to hear.”

• The Event: Moses is addressing the Israelites after 40 years of seeing literal, physical miracles (manna, pillars of fire, the Red Sea parting).

• The Breakdown: Moses identifies the root cause first: the heart lacked understanding. The biological signal originating from their inner being was corrupt. Because the heart was misaligned, the “eyes to see and ears to hear” were disabled. The physical light of the pillar of fire hit their retinas, but their minds could not perceive the spiritual reality of God’s presence.

Isaiah 6:9–10

“Make the heart of this people calloused; make their ears dull and close their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn and be healed.”

• The Event: Isaiah is commissioned to preach to a nation on the brink of exile.

• The Breakdown: The scripture says the heart is “calloused.” A fatty, diseased biological heart cannot pump blood effectively; a calloused spiritual heart rejects the seed of truth. The heavy ears and shut eyes are a symptom of the fat heart. The corrupted heart-brain connection ensures that no matter how loud Isaiah preaches, the mind will block the signal.

Jeremiah 5:21 & Ezekiel 12:2

“Hear this, O foolish people… who have eyes but do not see, who have ears but do not hear.”

• The Breakdown: Ezekiel creates a visual and auditory physical demonstration (packing and digging through a wall). Their physical eyes tracked his movements, but their minds entirely failed to translate the physics of the event into a spiritual warning. The outward behavior (bowel/gut) reaction was mockery.

The New Covenant Interpretation:

When JesusJesus of Nazareth, also called the Christ or the Messiah, is the central figure of the New Testament and the fulfillment of God’s redemptive plan. Born in the line of David, He taught with divine authority, performed miracles, and revealed the kingdom of God. Through His crucifixion and resurrection, Jesus provides atonement, salvation, and restored relationship with God. He is... More arrives, He explicitly uses agricultural parables to explain this physiological process. In Matthew 13:13–15, Mark 4:12, and Luke 8:8, JesusJesus of Nazareth, also called the Christ or the Messiah, is the central figure of the New Testament and the fulfillment of God’s redemptive plan. Born in the line of David, He taught with divine authority, performed miracles, and revealed the kingdom of God. Through His crucifixion and resurrection, Jesus provides atonement, salvation, and restored relationship with God. He is... More delivers the Parable of the Sower.

• The Heart is the Soil: JesusJesus of Nazareth, also called the Christ or the Messiah, is the central figure of the New Testament and the fulfillment of God’s redemptive plan. Born in the line of David, He taught with divine authority, performed miracles, and revealed the kingdom of God. Through His crucifixion and resurrection, Jesus provides atonement, salvation, and restored relationship with God. He is... More defines four types of soil. For the hard path, the physical ears hear the story, but the Mind cannot penetrate the encryption.

• Mark 8:18: “Having eyes, do you not see? And having ears, do you not hear?” The disciples are panicking in a boat with JesusJesus of Nazareth, also called the Christ or the Messiah, is the central figure of the New Testament and the fulfillment of God’s redemptive plan. Born in the line of David, He taught with divine authority, performed miracles, and revealed the kingdom of God. Through His crucifixion and resurrection, Jesus provides atonement, salvation, and restored relationship with God. He is... More because they forgot bread, even though they just miraculously fed 4,000. Why? Mark 6:52 states explicitly: “for their hearts were hardened.” They watched bread multiply, but the hardened heart blocked the brain from perceiving that the Lord was in the boat.

• Matthew 13:16: “Blessed are your eyes, for they see, and your ears, for they hear.” The disciples, unlike the Pharisees, had surrendered their heart. They had “good soil.” The heart was finally sending the correct, humble signals to the mind/brain (single eye).

Memory Tool for Part 1: The S.E.E. Method

• S – Senseless (The Old Covenant): Imagine a statue with carved-out eyes and ears. Connect Isaiah, Jeremiah, Ezekiel (I Just Empty) preaching to statues.

• E – Encryption (The Gospel): JesusJesus of Nazareth, also called the Christ or the Messiah, is the central figure of the New Testament and the fulfillment of God’s redemptive plan. Born in the line of David, He taught with divine authority, performed miracles, and revealed the kingdom of God. Through His crucifixion and resurrection, Jesus provides atonement, salvation, and restored relationship with God. He is... More holds a locked box (parables) in Matthew, Mark, and Luke. It looks like a simple story on the outside.

• E – Enlightenment: The box opens, radiating light. “Blessed are your eyes.”

PART 2: THE MIND (The Physics, Light, and The Pineal Gland)

If the Heart sends the right signal, the Mind must process it. This is where the biological architecture God designed intersects flawlessly with the physics of the universe.

Matthew 6:22 “The light of the body is the eye: if therefore thine eye be single, thy whole body shall be full of light.”

The Physics of Light:

What we call “visible light” is merely a tiny fraction of the electromagnetic spectrum. Radio waves, microwaves, and gamma rays are constantly passing through our physical space. We cannot see them because our physical eyes are not tuned to those frequencies. When JesusJesus of Nazareth, also called the Christ or the Messiah, is the central figure of the New Testament and the fulfillment of God’s redemptive plan. Born in the line of David, He taught with divine authority, performed miracles, and revealed the kingdom of God. Through His crucifixion and resurrection, Jesus provides atonement, salvation, and restored relationship with God. He is... More speaks of light, He addresses a reality that exists on a frequency the physical eye cannot process alone.

The Biology of the Pineal Gland:

When photons hit the retina of your eye, the eye does not actually “see.” It simply translates that physical light into an electrical signal. That signal travels down the optic nerve directly into the pineal gland, located at the center of the brain.

The pineal gland is the body’s master light-meter. It takes the electrical signal generated by light and converts it into a chemical output (like melatonin). It tells the entire bodily system whether it is day or night. If the eye (the sensor) is covered or diseased, the pineal gland (the processor) assumes it is dark and shuts the system down.

The Single vs. Evil Eye:

Looking at the Greek reveals the diagnostic truth of Matthew 6:22-23:

• The Single Eye (haplous): Meaning clear, sound, or having an undivided focus. Biologically, a clear lens allows 100% of the light signal to reach the processor. Spiritually, it is a mind completely focused on the frequency of God.

• The Evil Eye (poneros): In first-century Hebrew idiom, an “evil eye” meant a person who was envious, greedy, or spiritually divided.

If your physical eye (the sensor) is misaligned by the Heart‘s underlying greed, the electrical signal sent to the Mind (the pineal processing center) is corrupted. The Mind takes that corrupted signal and says, “There is no spiritual light here.” As JesusJesus of Nazareth, also called the Christ or the Messiah, is the central figure of the New Testament and the fulfillment of God’s redemptive plan. Born in the line of David, He taught with divine authority, performed miracles, and revealed the kingdom of God. Through His crucifixion and resurrection, Jesus provides atonement, salvation, and restored relationship with God. He is... More warned: “If therefore the light that is in thee be darkness, how great is that darkness!”

Memory Tool for Part 2: The L.E.N.S. Protocol

• L – Light (Source): The truth of God across all frequencies.

• E – Eye (Sensor): The input device that must be properly aimed.

• N – Nucleus (Processor): The Mind/Pineal gland receiving the signal.

• S – Single (Condition): The lens must be single (haplous) and undivided.

PART 3: THE SOUL (The Enteric Nervous System and The Harvest)

This is the exact culmination of the system. What the Heart accepts and the Mind processes ultimately becomes the physical behavior (the harvest) of the individual.

The Biology of the “Second Brain”:

For centuries, Western science believed the brain in your skull controlled all behavior. This is biologically false. You have a “second brain” in your digestive tract called the Enteric Nervous System (ENS), consisting of over 100 million neurons. It communicates directly with the brain via the Vagus Nerve. Astonishingly, roughly 90% to 95% of your body’s serotonin (the neurotransmitter responsible for mood and outward behavior) is produced in your gut, not your brain.

The Scriptural Proof (Translation History):

The ancient Hebrews were deeply connected to human physiology. They did not locate deep compassion or behavior in the physical blood-pumping heart. They located it in the gut. In Hebrew, the word is רַחֲמִים (Rachamim), and in Greek, it is σπλάγχνον (Splagchnon). Both literally translate to the “inward parts,” the “intestines,” or the “bowels.”

Let’s look at translation history:

• 1 John 3:17 (KJV): “But whoso hath this world’s good, and seeth his brother have need, and shutteth up his bowels of compassion from him, how dwelleth the love of God in him?”

• 1 John 3:17 (NIV): “If anyone has material possessions and sees a brother or sister in need but has no pity on them, how can the love of God be in that person?”

Modern translators (like the NIV committees) actively revised and removed the word “bowels” because they felt it sounded unrefined to a Western audience, replacing it with “pity” or “heart.” But John was biologically accurate: when you refuse to help someone, you physically suppress the vagus nerve’s empathetic response in your enteric nervous system. You “shut up” your gut.

• Proverbs 20:27 (KJV): “The spirit of man is the candle of the LORD, searching all the inward parts of the belly.”

• Colossians 3:12 (KJV): “Put on therefore, as the elect of God, holy and beloved, bowels of mercies…”

PaulAlso known as the Apostle Paul or Saul of Tarsus, he is the most influential missionary and writer of the New Testament. Originally a Pharisee who persecuted Christians, Paul experienced a dramatic encounter with the risen Jesus and became a devoted messenger of the gospel. He traveled widely, planted churches across the Roman world, and wrote letters that form a... More is not speaking metaphorically. The behavior of a believer/unbeliever originates from a deep, physiological gut-level transformation signal received from an awakened mind; received from a signal from the seeds planted in the fresh soil of a surrendered heart. The “harvest” of the spiritual seed is a visceral, biological output from the bowel.

Proverbs 4:23 (KJV) “Keep thy heart with all diligence; for out of it are the issues of life.” 

Matthew 6:22 (KJV) “The light of the body is the eye: if therefore thine eye be single, thy whole body shall be full of light.”

Colossians 3:12 (KJV) “Put on therefore, as the elect of God, holy and beloved, bowels of mercies, kindness, humbleness of mind, meekness, longsuffering;”

Conclusion:

1. You must surrender your heart for giving others and asking for forgiveness. God replaces that Heart of stone with a heart of flesh (being reborn), planting the seeds of Gods Gifts of Truth and FaithTrust in God’s character, promises, and guidance — choosing confidence in Him even when circumstances are uncertain. More, so your heart can grow by staying connected to the vine!
2. Your new planted Heart needs NO strongholds or walls to protect the heart (Holy Spirit protects it), so the “single eye” (pineal) can now receive and perceive the light of the Lord allowing your physical eyes to see a new spirit filled perception, that is TRUE reality.
3. The Mind (single eye) will now send the new signals to your bowels (your gut feelings) that are Fruits God promises. The Fruits of Joy, Peace, Truth, FaithTrust in God’s character, promises, and guidance — choosing confidence in Him even when circumstances are uncertain. More, Self Control, etc. These fruits will produce abundance as long as they are connected to the vine (JesusJesus of Nazareth, also called the Christ or the Messiah, is the central figure of the New Testament and the fulfillment of God’s redemptive plan. Born in the line of David, He taught with divine authority, performed miracles, and revealed the kingdom of God. Through His crucifixion and resurrection, Jesus provides atonement, salvation, and restored relationship with God. He is... More).

This is how the scripture tells it in the Word of God, and God is the Word. If you are not yet aware of the Armor of God that PaulAlso known as the Apostle Paul or Saul of Tarsus, he is the most influential missionary and writer of the New Testament. Originally a Pharisee who persecuted Christians, Paul experienced a dramatic encounter with the risen Jesus and became a devoted messenger of the gospel. He traveled widely, planted churches across the Roman world, and wrote letters that form a... More talk’s about. That is a great place to continue your spiritual journey. The Sword is the word of the scriptures. Read them and let them be your daily bread. Every verse you read, every parable you understand, and every teaching JesusJesus of Nazareth, also called the Christ or the Messiah, is the central figure of the New Testament and the fulfillment of God’s redemptive plan. Born in the line of David, He taught with divine authority, performed miracles, and revealed the kingdom of God. Through His crucifixion and resurrection, Jesus provides atonement, salvation, and restored relationship with God. He is... More teaches sharpens your sword! Let these shine your light to the world that those in darkness may seek your light. One match can light another; one Candle can light another Candle!

Final Thought:

Think of it like this: The Lord is the Radio station, the one you want to tune your Radio Tower (Heart) to get clear perfect divine signal frequencies. The Radio Tower receiving divine signals allow your Radio Receiver (Mind) to fine tune the station with no static for vibrant sound quality. The music “you now feel” deep in your gut (Bowel) cause your behavior to “Dance in the streets before all in the Kingdom” just like King DavidIsrael’s second king and one of the most central figures in Scripture. Known as a shepherd, warrior, poet, and “a man after God’s own heart,” David united the tribes of Israel, established Jerusalem as the capital, and received the Davidic Covenant, promising that his throne would be established forever — ultimately fulfilled in Jesus, the Son of David. David’s life... More rejoiced.

Memory Tool for Part 3: The S.O.U.L. Harvest

• S – Second Brain: The Enteric Nervous System (ENS) in the gut.

• O – Original Text: Greek (splagchnon) & Hebrew (rachamim) literally mean bowels.

• U – Unseen Signal: The vagus nerve carrying the processed truth down to the gut.

• L – Literal Action: The final outward behavior harvested from this process.

By visualizing a seed planted in the Soil (Heart), growing up toward the Light (Mind), and producing fruit in the Belly (Gut), this teaching flawlessly locks the spiritual realities of scripture to the physical realities of human biology.