Joshua 5:4-6

Amplified Bible, Classic Edition

⁴ And this is the reason Joshua circumcised them: all the males of the people who came out of Egypt, all the men of war, had died in the wilderness on the way after they came out of Egypt.

⁵ Though all the people who came out were circumcised, yet all the people who were born in the wilderness on the way after Israel came out of Egypt had not been circumcised.

⁶ For the Israelites walked forty years in the wilderness till all who were men of war who came out of Egypt perished, because they did not hearken to the voice of the Lord; to them the Lord swore that He would not let them see the land which the Lord swore to their fathers to give us, a land flowing with milk and honey.