Numbers 32:10-12

And at that time the Lord was moved to wrath, and made an oath, saying, Truly, not one of the men of twenty years old and over who came out of Egypt will see the land which I gave by oath to Abraham, Isaac, and Jacob; because they have not been true to me with all their heart; But only Caleb, the son of Jephunneh the Kenizzite, and Joshua, the son of Nun: because they have been true to the Lord.