Numbers 14:28-29

14:28 Say to them, ‘As I live, says the Lord, I will surely do to you just what you have spoken in my hearing. 14:29 Your dead bodies will fall in this wilderness – all those of you who were numbered, according to your full number, from twenty years old and upward, who have murmured against me.

Numbers 26:2

26:2 “Take a census of the whole community of Israelites, from twenty years old and upward, by their clans, everyone who can serve in the army of Israel.”

Numbers 26:64-65

26:64 But there was not a man among these who had been among those numbered by Moses and Aaron the priest when they numbered the Israelites in the wilderness of Sinai. 26:65 For the Lord had said of them, “They will surely die in the wilderness.” And there was not left a single man of them, except Caleb son of Jephunneh and Joshua son of Nun.

Deuteronomy 1:35

1:35 “Not a single person of this evil generation will see the good land that I promised to give to your ancestors!

Deuteronomy 2:14-15

2:14 Now the length of time it took for us to go from Kadesh Barnea to the crossing of Wadi Zered was thirty-eight years, time for all the military men of that generation to die, just as the Lord had vowed to them. 2:15 Indeed, it was the very hand of the Lord that eliminated them from within the camp until they were all gone.