Exodus 15:3
2 The Lord is my strength and my song, and he has become my salvation. This is my God, and I will praise him, my father’s God, and I will exalt him. 3 The Lord is a man of war10— the Lord is his name. 4 The chariots of Pharaoh and his army he has thrown into the sea, and his chosen officers were drowned in the Red Sea.
Onkelos Exodus 15:3
2 The Lord is my strength and my song; He has spoken through His Word that He will be my Redeemer. This is my God, and I will build Him a sanctuary; the God of my ancestors, and I will worship before Him. 3 The Lord is a master of victory in war, the Lord is His Name. 4 He has cast Pharaoh's chariots and horses into the sea; his chosen warriors are drowned in the Sea of Reeds.
Notes and References
"... Bible: 'God is a Man of War.' Our translator and Saadiah avoid the crude and aggressive anthropomorphism. Rashi cites the similar targumic conversion of 'man' to 'master' in Ruth and 1 Kings 2:2. The targumist's addition of 'victory' implies that God is not physically engaged in battle, but influences the outcome ..."
Drazin, Israel, and Stanley M. Wagner Onkelos on the Torah, Exodus: Understanding the Bible Text (p. 89) Gefen, 2006