In Mark 2:8, Jesus perceives the scribes' evil thoughts in their hearts — a direct instance of the inward evil Mark 7:21 traces to the heart.

Romans 7:5 expands on the same concept: sinful passions within produce deeds leading to death, just as Jesus says evil comes from the heart.

Jeremiah 4:14 calls for washing the heart from evil and mentions wicked thoughts lodging within—a clear parallel to the evil thoughts coming from within.

Jeremiah 17:9 declares the heart deceitful and desperately sick—reinforcing the corrupt inner source that Mark describes.

Ezekiel 38:10 says 'you shall think an evil thought,' matching the evil thoughts proceeding from within in Mark.

Matthew 9:4 shows Jesus knowing evil thoughts in hearts, confirming that sin originates internally as Mark teaches.

Matthew 15:19 nearly repeats Mark’s list of evils from the heart—a parallel account of the same teaching.

Matthew 23:25-28 contrasts outward cleanliness with inward corruption—illustrating the heart’s defilement that Mark identifies.

Luke 16:15 says God knows hearts and what people exalt is an abomination—underscoring that inner reality, not appearance, matters.

Acts 5:4 exposes a deed conceived in the heart—showing that sin, as in Mark, begins with an inner scheme.

Genesis 8:21 confirms the heart's inherent evil from youth, aligning with Jesus' list of evils that come from within.

Romans 7:8 illustrates one item from Mark's list: covetousness stirred up by sin through the law, showing inward desire leading to transgression.

Romans 8:7 describes the carnal mind as enmity against God — the same internal source of evil Jesus identifies as coming from the heart.

Galatians 5:19-21 provides a similar catalog of sinful deeds flowing from fallen human nature, echoing Jesus' list from the heart.

Titus 3:3 describes our former life enslaved by passions and pleasures — the same evil desires Jesus says proceed from the heart.

James 1:14 explains temptation arises from internal desire, exactly matching Jesus' teaching that evil comes from within the heart.

James 1:15 traces the progression from internal desire to sin and death, fleshing out the process Jesus summarized as evil from the heart.

James 4:1-3 traces quarrels and war to internal passions, the same inner source Jesus identifies for all kinds of evil.

1 Peter 4:3 lists similar vices (lasciviousness, lusts) from the past, reinforcing the internal origin of sin Jesus describes.

Psalm 14:3 declares universal corruption, reinforcing Jesus' point that no one is free from inner defilement — evil originates in the heart.

Genesis 6:5 describes the heart's every intent as evil, prefiguring Jesus' teaching that defilement originates from within.

Job 14:4 asks who can bring clean from unclean, reinforcing Jesus' point that defilement comes from an unclean heart.

Job 15:14-16 declares humans corrupt and abominable, reinforcing Jesus' assertion that defilement springs from within the heart.

Job 25:4 questions human purity before God, echoing the theme that no one is inherently clean — the heart's evil makes defilement inevitable.

Psalm 14:1 describes the fool's corrupt heart leading to abominable deeds, linking to Jesus' claim that evil deeds originate from within.

Isaiah 59:7 describes thoughts of iniquity and running to evil, directly paralleling the evil thoughts and murders from the heart.

Psalm 53:1 repeats the corruption of the fool's heart, aligning with Jesus' teaching that defilement comes from within.

Psalm 58:2 also says evil is devised in the heart—both locate sin’s origin within. A direct echo of the inner source of wrongdoing.

Proverbs 4:23 urges guarding the heart because it’s the source of life—opposite to Mark’s catalogue of evil. Both affirm the heart as the wellspring.

Isaiah 59:13 describes conceiving lying words from the heart — directly paralleling Mark's list of evil thoughts proceeding from within.

Proverbs 12:20 says deceit is in the heart of those who imagine evil — matching Jesus' source of evil.

Deuteronomy 15:9 warns against a wicked heart thought of withholding from the poor, echoing the heart's evil thoughts in Mark.

Hebrews 3:12 warns against an evil heart of unbelief, directly paralleling Jesus' teaching that evil comes from the heart.

Ephesians 2:3 says we were by nature children of wrath, indulging fleshly desires — directly aligning with Jesus' teaching that evil originates in our inner being.

Romans 3:10 declares universal unrighteousness — confirming that the evil thoughts and actions Jesus says come from the heart are common to all.

Jeremiah 22:17 condemns a king whose heart is set on covetousness, bloodshed, and oppression — specific evils that match Mark's list from the heart.

Ecclesiastes 9:3 says the heart of men is full of evil — precisely what Jesus teaches about the heart's contents.

Romans 7:18 echoes that nothing good dwells in the flesh — reinforcing Jesus' point that sin originates from within, not from external sources.

Psalm 5:9 describes the inward part as wicked — the same source of evil Jesus identifies in the heart.

1 Corinthians 5:11 lists sins like sexual immorality and greed — overlapping with Mark 7:21's list — as grounds for church discipline, showing these flow from the heart.

Isaiah 55:7 calls the wicked to forsake their evil thoughts — the same inner source Jesus identifies in Mark 7:21.

Colossians 3:5 calls for putting to death earthly vices like sexual immorality and evil desire — a practical response to the heart-sins Jesus identifies.

Matthew 9:3 shows scribes thinking evil within themselves — a concrete example of the evil thoughts Jesus says proceed from the heart.

Zechariah 7:10 commands not to imagine evil against a brother in the heart — directly opposing the evil thoughts Jesus says arise from within.

1 Corinthians 3:3 points to jealousy and strife as signs of fleshly behavior — specific fruits of the evil heart Mark 7:21 says produces such things.

Jeremiah 18:12 records the people's determination to follow the imagination of their evil heart — echoing Mark's emphasis on inner evil.

Ezekiel 11:21 speaks of those whose heart walks after detestable things — the same inner corruption Jesus says defiles a person.

Ephesians 5:3 names sexual immorality and covetousness — two evils from Mark 7:21's list — commanding they not even be mentioned among believers.

Proverbs 28:26 warns against trusting one's own heart — the heart Jesus says produces evil.

Jeremiah 16:12 indicts Israel for walking after the imagination of their evil heart — the same source of defilement Jesus teaches.

Psalm 119:36 asks to incline the heart away from covetousness — the same heart Jesus says produces evil desires.

Matthew 24:48 depicts the evil servant acting on wicked thoughts from his heart — a specific example of the evil proceeding from within that Jesus describes.

1 Peter 4:2 urges living for God's will rather than human passions — the same passions Jesus warns come from the heart.

Proverbs 21:10 says the wicked soul desires evil — the same inner desire Jesus points to.

In 1 Timothy 1:10, sexual immorality is listed among lawless behaviors, echoing the heart sins Jesus lists here.

Hebrews 12:16 warns against sexual immorality and profaneness, linking to the fornication Jesus lists as coming from the heart.

In Job 15:12, the heart carries a person away — echoing Jesus' teaching that evil originates from within.