Hebrews 3:8 recalls the wilderness rebellion where hearts were hardened — the very warning applied in 3:12 against an unbelieving heart.

Hebrews 12:25 reinforces the warning: refusing God's voice leads to judgment, echoing the call not to fall away.

Hebrews 12:15 warns against failing grace and a root of bitterness—mirroring the evil, unbelieving heart here.

Hebrews 2:1-3 warns against drifting from the gospel—same danger of falling away, urging vigilance.

Hebrews 11:6 declares that faith is essential to please God — directly countering the evil, unbelieving heart described in 3:12.

Hebrews 4:11 urges striving to enter rest to avoid falling by disobedience — echoing the warning in 3:12 against falling away from God.

Hebrews 4:2 says the good news did not benefit the wilderness generation because they lacked faith — the same unbelief warned against in 3:12.

Genesis 8:21 reveals that the human heart is inherently evil from youth — the root of the 'evil, unbelieving heart' warned against here.

Mark 7:21-23 lists evil thoughts and actions coming from the heart — detailing the source and fruit of an evil heart.

Jeremiah 18:12 records the people's resolve to follow their stubborn evil heart — the very attitude that leads to falling away.

Jeremiah 17:9 declares the heart deceitful and desperately sick — explaining why an 'evil, unbelieving heart' naturally arises.

Jeremiah 17:5 curses the one whose heart turns away from the Lord, directly echoing the evil, unbelieving heart.

Jeremiah 16:12 speaks of each walking in the stubbornness of his evil heart — the same root of unbelief.

Jeremiah 11:8 repeats 'stubbornness of their evil heart' — emphasizing the persistent pattern that leads to disobedience.

Jeremiah 7:24 directly says they walked in the stubbornness of their evil heart — identical language to the warning in Hebrews.

Jeremiah 2:13 describes forsaking God, the fountain of living waters — the same apostasy as 'falling away from the living God' in Hebrews.

Isaiah 59:13 confesses 'turning away from following our God' — a direct parallel to falling away from the living God.

Romans 11:21 warns that God will not spare the unfaithful—direct parallel to the danger of falling away.

1 Corinthians 10:12 says 'take heed lest you fall'—virtually the same warning against overconfidence and unbelief.

Romans 11:20 states branches broken off because of unbelief—directly parallels the falling away from unbelief warned against.

1 Timothy 3:15 describes the church of the living God—the same 'living God' and household context as Hebrews.

1 John 5:10 equates unbelief with making God a liar — deepening the severity of the 'evil, unbelieving heart' in Hebrews 3:12.

Romans 10:10 says with the heart one believes and is justified—contrasts directly with the evil, unbelieving heart here.

Acts 14:15 calls people to turn from vain things to the living God—the same 'living God' whom Hebrews warns against abandoning.

Deuteronomy 1:32 recounts Israel's unbelief in the wilderness, the very example Hebrews 3 uses to warn against falling away.

Matthew 21:32 recounts refusal to believe John—a clear instance of the stubborn unbelief that Hebrews warns could cause one to fall away.

Matthew 15:8 exposes a heart far from God despite outward worship—exactly the kind of internal unbelief that Hebrews says leads to apostasy.

Deuteronomy 11:16 cautions against a deceived heart leading to idolatry, matching the warning about an unbelieving heart.

Deuteronomy 29:18 warns of a heart turning from God to other gods, directly paralleling the evil, unbelieving heart.

Deuteronomy 30:17 describes a heart that turns away and worships other gods, echoing the fall away from the living God.

Jeremiah 5:23 describes a stubborn, rebellious heart that turns aside, matching the evil heart that departs from God.

2 Kings 17:14 describes stiff-necked unbelief, reflecting the same hardened, unbelieving heart warned against.

Matthew 13:58 shows unbelief stopping Jesus' miracles—demonstrating the severe consequence of the evil heart Hebrews warns against.

Psalm 106:24 notes having no faith in God's promise, akin to the unbelief that leads to falling away.

Psalm 78:22 cites lack of belief and trust in God, the core issue behind the evil, unbelieving heart.

Malachi 2:8 rebukes priests who turned aside from the way and caused others to stumble—a concrete example of the kind of falling away Hebrews warns about.

John 3:19 describes people loving darkness rather than light—a deliberate rejection that parallels the evil, unbelieving heart turning from God.

Ezekiel 14:5 describes hearts estranged from God through idols—the same inward turning away that Hebrews warns against as an evil, unbelieving heart.

Job 21:14 describes the wicked saying 'Depart from us' — the exact rejection that Hebrews warns against.

Psalm 18:21 says David did not depart from God — contrasting the evil heart that falls away in Hebrews.

1 Thessalonians 1:9 describes turning to God from idols — the opposite of falling away, highlighting conversion.

Job 22:17 repeats the same rejection 'Depart from us', mirroring the unbelief that leads to falling away.

Proverbs 1:32 warns that turning away brings destruction, paralleling the consequence of unbelief in Hebrews.

Proverbs 14:14 speaks of a backsliding heart, a less direct but thematic parallel to turning from God.

Daniel 9:5 confesses turning aside from God's commands—a specific form of rebellion that mirrors the falling away Hebrews cautions against.

John 16:9 describes the Spirit convicting the world of sin because they do not believe—directly echoing the unbelief warned against here.

Matthew 6:30 rebukes 'little faith'—a milder form of the unbelief that Hebrews warns will lead to falling away from God.