1 John 5:17 clarifies that all wrongdoing is sin and reaffirms the category of sin not leading to death.

Jeremiah 14:11 again forbids prayer for the people, aligning with John's limit on intercession for those committing sin leading to death.

2 Peter 2:20-22 shows those who escape corruption but return are worse off, similar to John's sin leading to death in apostasy.

In James 5:15, the prayer of faith saves the sick and forgives sins — directly echoes the promise of life for those who sin not to death.

Hebrews 10:26-31 warns that deliberate sin after knowing truth leaves no sacrifice for sins, paralleling John's sin that leads to death.

Hebrews 6:4-6 describes apostates who cannot be restored, echoing the 'sin leading to death' that John says not to pray for.

Luke 12:10 distinguishes speaking against Son of Man from blasphemy against Spirit — the latter being the sin leading to death in John.

Mark 3:28-30 describes an eternal sin — the same sin that John says leads to death and should not be prayed for.

Matthew 12:32 reinforces that blasphemy against the Spirit is not forgiven — clarifying the sin John says not to pray for.

Matthew 12:31 identifies blasphemy against the Spirit as unforgivable — the likely referent of John's 'sin leading to death'.

Jeremiah 15:1 declares even Moses and Samuel cannot intercede for this people — illustrating cases where prayer for sinners is futile.

Genesis 20:7 has Abraham pray for Abimelech after his sin, and God restores life—a clear example of intercessory prayer for a brother's sin.

Jeremiah 11:14 repeats God's command not to pray for this people, reinforcing the same prohibition John applies to sin leading to death.

Jeremiah 7:16 has God commanding Jeremiah not to pray for the people, directly paralleling John's instruction not to pray for sin leading to death.

In Job 42:7-9, Job prays for his friends who sinned, and God accepts his prayer — a clear example of interceding for others' sin.

Genesis 20:17 records Abraham's prayer healing Abimelech's household—demonstrating life-giving intercession for sin as in 1 John 5:16.

Exodus 32:10-14 shows Moses interceding for Israel's grave sin, and God relents—illustrating prayer for sin, even one leading to death.

Exodus 32:32 has Moses offer his own life for Israel's sin—a profound example of sacrificial intercession for a brother's sin.

In Numbers 14:11-21, Moses pleads for Israel after rebellion, turning away God's wrath — a model of intercession for sins that could lead to death.

In Numbers 15:30, defiant sin 'with a high hand' brings being cut off — a precedent for John's category of sin that leads to death.

In Deuteronomy 9:18-20, Moses intercedes for Aaron after the golden calf, saving him from God's anger — direct parallel to praying for a brother's sin.

In 1 Samuel 2:25, Eli notes that sin against the Lord leaves no intercessor — directly echoing John's warning not to pray for sin leading to death.

In Psalm 106:23, Moses stood in the breach to avert God's destruction, directly mirroring intercession for sin that could lead to death.

Galatians 6:1 calls for gentle restoration of a sinner — same pastoral care for a brother's sin as praying for life.

Numbers 16:26-32 shows Korah's rebellion ending in physical death — a vivid example of sin that leads to death as divine judgment.

In Ezekiel 22:30, God seeks an intercessor but finds none — contrasting with 1 John's call to pray, highlighting the need for such prayer.

1 Corinthians 5:5 aims at physical destruction for spiritual salvation — a different outcome than the 'sin leading to death' that should not be prayed for.

In Numbers 12:13, Moses intercedes for Miriam's sin and leprosy, showing prayer for a brother's sin and its consequences.

Exodus 34:9 shows Moses praying for pardon for Israel's sin—another instance of interceding for a sinful people, aligning with 1 John 5:16's call to pray for a brother.

2 Timothy 2:25 urges gentle instruction hoping for repentance — parallels praying for life for those sinning not to death.

Hebrews 10:39 contrasts shrinking back to destruction with faith to life — echoes the two outcomes of sin in 1 John 5:16.

In 2 Chronicles 30:18-20, Hezekiah prays for the people's ceremonial uncleanness, and God heals them — intercession for unintentional sin.