Deuteronomy 3:18-20

18And I commanded you at that time, saying, Jehovah your God hath given you this land to possess it: ye shall pass over armed before your brethren the children of Israel, all the men of valor. 19But your wives, and your little ones, and your cattle (I know that ye have much cattle), shall abide in your cities which I have given you, 20until Jehovah give rest unto your brethren, as unto you, and they also possess the land which Jehovah your God giveth them beyond the Jordan: then shall ye return every man unto his possession, which I have given you.