"God [is] not a man, that He should lie, Nor a son of man, that He should repent. Has He said, and will He not do? Or has He spoken, and will He not make it good?

"How long [shall I bear with] this evil congregation who complain against Me? I have heard the complaints which the children of Israel make against Me.

'The carcasses of you who have complained against Me shall fall in this wilderness, all of you who were numbered, according to your entire number, from twenty years old and above.

For the LORD had said of them, "They shall surely die in the wilderness." So there was not left a man of them, except Caleb the son of Jephunneh and Joshua the son of Nun.

But with most of them God was not well pleased, for [their bodies] were scattered in the wilderness.

Now all these things happened to them as examples, and they were written for our admonition, upon whom the ends of the ages have come.

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