I commanded you, to wit, the Reubenites and Gadites, mentioned Deuteronomy 3:16, to whom he now turns his speech by an apostrophe. Meet for the war; in such number as your brethren shall judge necessary. See Joshua 1:14, Joshua 4:13.
Related Commentaries of Deuteronomy 3:18
Deuteronomy 3:18
18 And I commanded you at that time, saying, The LORD your God hath given you this land to possess it: ye shall pass over armed before your brethren the children of Israel, all that are meetb for the war.