Numbers 32:20

¹⁸  We will not return unto our houses, until the children of Israel have inherited every man his inheritance.

¹⁹  For we will not inherit with them on yonder side Jordan, or forward; because our inheritance is fallen to us on this side Jordan eastward.

²⁰  And Moses said unto them, If ye will do this thing, if ye will go armed before the LORD to war,

²¹  And will go all of you armed over Jordan before the LORD, until he hath driven out his enemies from before him,

²²  And the land be subdued before the LORD: then afterward ye shall return, and be guiltless before the LORD, and before Israel; and this land shall be your possession before the LORD.