Numbers 21:6

And the Lord sent fiery serpents among the people, and they bit the people; and much people of Israel died.

Cross-reference

Deuteronomy 8:15 recalls God leading Israel through the wilderness with fiery serpents, directly referencing this same event.

In 1 Corinthians 10:9, Paul references destruction by serpents as a warning, directly citing this event.

Acts 28:5 Contrast

Acts 28:5 shows Paul bitten by a viper but unharmed — contrasting the deadly serpent judgment here.

Jeremiah 8:17 says God will send serpents that cannot be charmed, echoing the same kind of judgment as in Numbers.