What does internal vs. external defilement mean?
What does "nothing that enters a man" teach about external versus internal defilement?

Setting the Scene

• Jesus is debating Pharisees who insist that ritual hand-washing and food laws are required for purity (Mark 7:1-13).

• He responds by turning the whole discussion inward, exposing the true source of uncleanness.


Key Verse

Mark 7:15: “Nothing that enters a man from the outside can defile him; but the things that come out of a man, these are what defile him.”


What External Things Cannot Do

• Food and drink do not reach the moral core—“the heart”—only the stomach (Mark 7:18-19).

• Rituals, traditions, and outward ceremonies may have value as symbols, but they cannot cleanse or corrupt the soul (Colossians 2:20-23).

• Observing regulations without heart obedience produces hypocrisy (Matthew 23:25-26).


Where True Defilement Begins

• The heart is the command center of thoughts, desires, and decisions (Proverbs 4:23).

• Jesus lists the pollutants that rise from within:

– evil thoughts

– sexual immorality

– theft

– murder

– adultery

– greed

– wickedness

– deceit

– lewdness

– envy

– slander

– pride

– foolishness (Mark 7:21-23)

• These inner impulses erupt into words and actions, proving that defilement is an inside-out affair (James 1:14-15).


Implications for Daily Life

• Guard the heart aggressively; what is allowed to simmer there will surface (Proverbs 4:23).

• Pursue inward transformation by the Spirit rather than mere behavioral adjustment (Galatians 5:22-24).

• Enjoy the freedom Christ announced—“All foods are clean” (Mark 7:19; Acts 10:15)—but never use that freedom to indulge the flesh (Romans 14:17; Galatians 5:13).

• Evaluate holiness by the fruit that emerges—love, purity, integrity—not by externals alone (Titus 1:15).


Supporting Scriptures

1 Samuel 16:7 – God looks at the heart.

Jeremiah 17:9 – The heart is deceitful above all things.

Matthew 15:17-20 – Parallel teaching on inner defilement.

Romans 12:2 – Transformation comes by renewing the mind, not ritual.

How does Mark 7:18 challenge our understanding of spiritual purity versus tradition?
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