1 Corinthians 10:5

However, God was not pleased with the vast majority of them, for their bodies were scattered over the desert [See Num. 14:29ff].

Hebrews 3:17-19

And who was God angry with for forty years? Was it not with those people who sinned, whose bodies fell [dead] in the desert?

Treasury of Scripture Knowledge

Summary

And this is the cause why Joshua did circumcise: All the people that came out of Egypt, that were males, even all the men of war, died in the wilderness by the way, after they came out of Egypt.

Bible References

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1 Corinthians 10:5
However, God was not pleased with the vast majority of them, for their bodies were scattered over the desert [See Num. 14:29ff].
Hebrews 3:17
And who was God angry with for forty years? Was it not with those people who sinned, whose bodies fell [dead] in the desert?