Deuteronomy 2:14-16

14Now thirty-eight years passed from the time we left Kadesh-barnea until we crossed the Zered Valley, until that entire generation of the men of war had died from within the camp, just as the Lord had sworn to them.

15Moreover the hand of the Lord was against them, to destroy them from within the camp, until they were all dead.

16“So it came about when all the men of war had finally died from among the people,