Numbers 14:35

I the Lord have said it, and this I will certainly do to all this evil people who have come together against me: in this waste land destruction will come on them, and death will be their fate.

Numbers 23:19

God is not a man, to say what is false; or the son of man, that his purpose may be changed: what he has said, will he not do? and will he not give effect to the words of his mouth

Numbers 14:27-29

How long am I to put up with this evil people and their outcries against me? The words which they say against me have come to my ears.

Numbers 26:65

For the Lord had said of them, Death will certainly overtake them in the waste land. And of them all, only Caleb, the son of Jephunneh, and Joshua, the son of Nun, were still living.

1 Corinthians 10:5

But with most of them God was not pleased: for they came to their end in the waste land.

1 Corinthians 10:11

Now these things were done as an example; and were put down in writing for our teaching, on whom the last days have come.

Hebrews 3:19

So we see that they were not able to go in because they had no belief.

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

Numbers 14:27
How long am I to put up with this evil people and their outcries against me? The words which they say against me have come to my ears.
Numbers 26:65
For the Lord had said of them, Death will certainly overtake them in the waste land. And of them all, only Caleb, the son of Jephunneh, and Joshua, the son of Nun, were still living.
1 Corinthians 10:5
But with most of them God was not pleased: for they came to their end in the waste land.
Hebrews 3:19
So we see that they were not able to go in because they had no belief.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain