Yehoshua 5:1-3

Orthodox Jewish Bible

5 And it came to pass, when all the melachim of the HaEmori, which were beyond the Yarden westward, and all the melachim of the Kena’ani, which were by the Yam, heard that Hashem had dried up the waters of the Yarden from before the Bnei Yisroel, until they had passed over, their levav sank, neither was there ruach in them any more, because of the Bnei Yisroel.

² At that time Hashem said unto Yehoshua, Make thee knives of flint, and do a second time the Bris Milah to the Bnei Yisroel.

³ And Yehoshua made him flint knives, and did Bris Milah to the Bnei Yisroel at Givat HaAralot.