1 Corinthians 10:8

Neither let us commit fornication, as some of them did and fell in one day twenty-three thousand.

Hebrews 2:2-3

For if the word spoken by angels was firm, and every transgression and disobedience received a just recompense,

Treasury of Scripture Knowledge

Summary

And the children of Levi did according to the word of Moses: and there fell of the people that day about three thousand men.

Bible References

There fell

1 Corinthians 10:8
Neither let us commit fornication, as some of them did and fell in one day twenty-three thousand.
Hebrews 2:2
For if the word spoken by angels was firm, and every transgression and disobedience received a just recompense,