Hebrews 4:1-2 warns that the good news did not benefit them because of unbelief—connecting to Jude’s example of saved then destroyed.

Numbers 26:64-65 confirms that none of the rebellious generation survived except Caleb and Joshua—directly illustrating Jude's point.

Hebrews 3:16-19 explicitly states that those who left Egypt fell in the wilderness due to unbelief—the exact point Jude makes.

Deuteronomy 2:15-16 describes the LORD's hand destroying the men of war until they perished—the same destruction Jude references.

In 1 Corinthians 10:1-12, Paul uses the same wilderness generation as a warning: saved from Egypt then destroyed for unbelief.

Numbers 14:22-37 records God's judgment on the unbelieving generation—the very event Jude cites as those saved then destroyed.

Psalm 106:26 recalls God's oath to make them fall in the wilderness—a poetic summary of the judgment Jude mentions.

Psalm 106:24 describes the Exodus generation's unbelief—the same people Jude says were destroyed for not believing after being saved.

2 Peter 1:12 uses nearly identical "remind you though you know" language, mirroring Jude 1:5's purpose.

Hebrews 3:19 explicitly says unbelief prevented entry, the same cause of destruction in Jude 1:5.

Hebrews 3:17 directly references the wilderness generation who sinned and fell, the same example as Jude 1:5.

1 Corinthians 10:5 explicitly states God was not pleased with most of the wilderness generation—the same group Jude cites as destroyed for unbelief.

Romans 11:21 warns that God did not spare natural branches (unbelieving Israel)—parallels Jude's warning that those saved from Egypt were destroyed for unbelief.

John 6:49 references the same wilderness generation who ate manna yet died—reinforcing Jude's point that physical deliverance doesn't guarantee salvation.

Ezekiel 20:38 describes God purging rebels after bringing them out—matching Jude's pattern of salvation followed by judgment on unbelief.

Psalm 95:8 warns against hardening hearts as at Meribah, referencing the wilderness generation's unbelief that Jude alludes to.

Psalm 78:22 explicitly says they did not believe God—the very sin Jude highlights as cause of destruction.

Psalm 78:21 describes God's wrath kindled against Israel in the wilderness, directly matching Jude's 'destroyed those who did not believe'.

Deuteronomy 2:14 notes the 38-year wait until the entire generation of warriors perished, showing the destruction Jude references.

Deuteronomy 1:32 describes Israel's unbelief despite God's word, directly mirroring Jude's mention of those who did not believe.

Numbers 26:65 states that all that generation except Caleb and Joshua died in the wilderness, fulfilling God's judgment on unbelief.

Numbers 14:37 records the death of the spies who brought a bad report—the specific unbelief that led to destruction, as Jude recalls.

Numbers 14:22-37 presents God's sworn oath that the unbelieving generation would die in the wilderness—the destruction Jude alludes to.