13 Remember the word that Moses the servant of Jehovah commanded you, saying, Jehovah your God has given you rest and has given you this land. 14 Your wives, your little ones, and your cattle shall abide in the land that Moses gave you on this side of the Jordan, but ye, all the valiant men, shall go over in array before your brethren and help them, 15 until Jehovah give your brethren rest as to you, and they also take possession of the land which Jehovah your God giveth them; then shall ye return into the land of your possession and possess it, which Moses the servant of Jehovah gave you on this side of the Jordan toward the sun-rising.

Matthew Henry's Commentary on Joshua 1:13-15

Commentary on Joshua 1:10-15

(Read Joshua 1:10-15)

Joshua says to the people, Ye shall pass over Jordan, and shall possess the land; because God had said so to him. We honour the truth of God, when we stagger not at the promise of God. The two tribes and a half were to go over Jordan with their brethren. When God, by his providence, has given us rest, we ought to consider what service we may do to our brethren.