Numbers 32:21-23

New Living Translation

²¹ and if your troops cross the Jordan and keep fighting until the Lord has driven out his enemies, ²² then you may return when the Lord has conquered the land. You will have fulfilled your duty to the Lord and to the rest of the people of Israel. And the land on the east side of the Jordan will be your property from the Lord. ²³ But if you fail to keep your word, then you will have sinned against the Lord, and you may be sure that your sin will find you out.