Numbers 14:35
I, Yahweh, have spoken, surely this will I do to all this evil congregation, who are gathered together against me: in this wilderness they shall be consumed, and there they shall die."
Numbers 23:19
God is not a man, that he should lie, nor the son of man, that he should repent. Has he said, and will he not do it? Or has he spoken, and will he not make it good?
Numbers 14:27-29
"How long [shall I bear] with this evil congregation, that murmur against me? I have heard the murmurings of the children of Israel, which they murmur against me.
Numbers 26:65
For Yahweh had said of them, They shall surely die in the wilderness. There was not left a man of them, except Caleb the son of Jephunneh, and Joshua the son of Nun.
1 Corinthians 10:5
However with 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 by way of example, and they were written for our admonition, on whom the ends of the ages have come.
Hebrews 3:19
We see that they were not able to enter in because of unbelief.