Joshua 22:8

and he spake unto them, saying, Return with much riches, their share of the booty of the wars, unto your tents, and with very much cattle, with silver, and with gold, and with brass, and with iron, and with very much raiment, for the cities of the Canaanites which they had captured, beginning with Ai, had contained great treasures, all of which fell into the hands of the invaders. Divide the spoil of your enemies with your brethren, namely, the sixty to seventy thousand who had remained to garrison the cities east of Jordan and to protect the homes and the herds of the two and one half tribes while the conquest of Canaan proper was going on.