Numbers 32:29

And Moses said unto them, If the children of Gad and the children of Reuben will pass with you over Jordan, every man armed to battle, before the Lord, and the land shall be subdued before you; then ye shall give them the land of Gilead for a possession:

Cross-references

Numbers 32:20-23 lays out the same conditional promise; here Moses restates it to the leaders.

Numbers 32:17 records the tribes' own promise to go armed; this verse confirms that condition to the leaders.

Joshua 14:3 confirms Moses gave the eastern land as promised—fulfillment of the agreement here.

Joshua 18:7 echoes that the two and a half tribes received their inheritance east of Jordan, as conditioned.

Joshua 22:9 describes the tribes returning east after conquest—fulfillment of the condition set in this verse.