Deuteronomio 33:7

Of Juda, "when he goes to war, and bring him back in peace to his people." (Onkelos) --- The general made a solemn prayer on such occasions; and the Psalm xix. was composed, and is still used, to draw down God's blessing in times of war. Moses thus clearly insinuates that the tribe of Juda should obtain the sovereign authority, though it would not be without opposition, that Israel would submit to David.

He begs that God would remove all obstacles. This tribe was always distinguished for its valour. It was directed by God to attack the Chanaanites, under Othoniel, Judges i. 2. But its chief glory appeared under the reigns of David and Solomon. The other tribes were scarcely a match for the single tribe of Juda. (Calmet) --- And he, God. (Menochius) --- If God be for us, who is against us? (Romans viii. 31.) (Haydock)