Numbers 32:20-22

LITV(i) 20 And Moses said to them, If you will do this thing; if you will arm for battle before Jehovah, 21 and all of you will go over Jordan armed before Jehovah, until He has driven His enemies out before Him, 22 and the land is subdued before Jehovah, then afterwards you shall return and be guiltless before Jehovah, and before Israel. And this land shall be your possession before Jehovah.