Deuteronomy 3:18

²⁰Moses said to them: “If you will do this thing, if you will arm yourselves to go before the LORD to the war, ²¹and every one of your armed men will pass over the Jordan before the LORD until he has driven out his enemies from before him, ²²and the land is subdued before the LORD; then afterward you shall return, and be clear of obligation to the LORD and to Israel. Then this land shall be your possession before the LORD.

²³“But if you will not do so, behold, you have sinned against the LORD; and be sure your sin will find you out. ²⁴Build cities for your little ones, and folds for your sheep; and do that which has proceeded out of your mouth.”

¹²The children of Reuben, and the children of Gad, and the half-tribe of Manasseh crossed over armed before the children of Israel, as Moses spoke to them. ¹³About forty thousand men, ready and armed for war, passed over before the LORD to battle, to the plains of Jericho.

¹²Joshua spoke to the Reubenites, and to the Gadites, and to the half-tribe of Manasseh, saying, ¹³“Remember the word which Moses the servant of the LORD commanded you, saying, ‘The LORD your God gives you rest, and will give you this land. ¹⁴Your wives, your little ones, and your livestock shall live in the land which Moses gave you beyond the Jordan; but you shall pass over before your brothers armed, all the mighty men of valor, and shall help them ¹⁵until the LORD has given your brothers rest, as he has given you, and they have also possessed the land which the LORD your God gives them. Then you shall return to the land of your possession and possess it, which Moses the servant of the LORD gave you beyond the Jordan toward the sunrise.’”

¹Then Joshua called the Reubenites, the Gadites, and the half-tribe of Manasseh, ²and said to them, “You have kept all that Moses the servant of the LORD commanded you, and have listened to my voice in all that I commanded you. ³You have not left your brothers these many days to this day, but have performed the duty of the commandment of the LORD your God. ⁴Now the LORD your God has given rest to your brothers, as he spoke to them. Therefore now return and go to your tents, to the land of your possession, which Moses the servant of the LORD gave you beyond the Jordan. ⁵Only take diligent heed to do the commandment and the law which Moses the servant of the LORD commanded you, to love the LORD your God, to walk in all his ways, to keep his commandments, to hold fast to him, and to serve him with all your heart and with all your soul.”

⁶So Joshua blessed them, and sent them away; and they went to their tents. ⁷Now to the one half-tribe of Manasseh Moses had given inheritance in Bashan; but Joshua gave to the other half among their brothers beyond the Jordan westward. Moreover when Joshua sent them away to their tents, he blessed them, ⁸and spoke to them, saying, “Return with much wealth to your tents, with very much livestock, with silver, with gold, with bronze, with iron, and with very much clothing. Divide the plunder of your enemies with your brothers.”

⁹The children of Reuben and the children of Gad and the half-tribe of Manasseh returned, and departed from the children of Israel out of Shiloh, which is in the land of Canaan, to go to the land of Gilead, to the land of their possession, which they owned, according to the commandment of the LORD by Moses.