1 Corinthians 10:5

but with the greater part God was not well pleased: for their carcasses were strown in the wilderness.

1 Corinthians 10:11

All these things happened to them for examples: and are written for our admonition, upon whom the ends of the ages are come.

Hebrews 3:19

because of their incredulity.

Treasury of Scripture Knowledge

Summary

I the LORD have said, I will surely do it unto all this evil congregation, that are gathered together against me: in this wilderness they shall be consumed, and there they shall die.

Bible References

This evil

1 Corinthians 10:5
but with the greater part God was not well pleased: for their carcasses were strown in the wilderness.
Hebrews 3:19
because of their incredulity.