And the LORD said unto Moses, Fear him not: for I have delivered him into your hand, and all his people, and his land; and you shall do to him as you did unto Sihon king of the Amorites, who dwelt at Heshbon.

According to the commandment of the LORD they were numbered by the hand of Moses, every one according to his service, and according to his burden: thus were they numbered of him, as the LORD commanded Moses.