Numbers 32:16-24

16And they drew near to him, and said, We will build sheepfolds here for our cattle, and cities for our little ones;

17but we ourselves will go with diligence armed before the children of Israel, until we have brought them to their place; and our little ones shall dwell in the strong cities because of the inhabitants of the land.

18We will not return to our houses, until the children of Israel have inherited each one his inheritance.

19For we will not inherit with them on yonder side the Jordan, and further, because our inheritance is fallen to us on this side the Jordan eastward.

20And Moses said to them, If ye do this thing, if ye arm yourselves before Jehovah for war,

21and all of you that are armed go over the Jordan before Jehovah, until he have dispossessed his enemies from before him,

22and the land is subdued before Jehovah, and afterwards ye return, ye shall be guiltless toward Jehovah and toward Israel, and this land shall be your possession before Jehovah.

23But if ye do not do so, behold, ye have sinned against Jehovah, and be sure your sin will find you out.

24Build yourselves cities for your little ones, and folds for your flocks, and do that which has gone out of your mouth.