Deuteronomy 3:18-20

18At that time I commanded you: “The LORD your God has given you this land to possess. All your men of valor are to cross over, armed for battle, ahead of your brothers, the Israelites. 19But your wives, your children, and your livestock—I know that you have much livestock—may remain in the cities I have given you, 20until the LORD gives rest to your brothers as He has to you, and they too have taken possession of the land that the LORD your God is giving them across the Jordan. Then each of you may return to the possession I have given you.”