1 Corinthians 10:5

But with the most of them God was not well pleased, for they were overthrown in the wilderness.

1 Corinthians 10:11

Now all these things happened to them as examples, and they are written for the instruction of us, upon whom the ends of the ages have come.

Hebrews 3:19

And so we see that they could not enter in because of unbelief.

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 most of them God was not well pleased, for they were overthrown in the wilderness.
Hebrews 3:19
And so we see that they could not enter in because of unbelief.