Deuteronomy 33:21

The first fruits of the conquest made by Israel were assigned to Gad and Reuben by Moses, at their own request.

Because ... seated - Render, because there was the leader’s portion reserved, i. e., there was reserved the fitting portion for Gad as a leader in war.

And he came ... - i. e., he joined the other leaders to fulfill the commands of God respecting the conquest of Canaan (compare Numbers 32:17, Numbers 32:21, Numbers 32:32; Joshua 1:14). Moses regards the promise of the Gadites to do this as already redeemed.