Your right hand, O LORD, is majestic in power; Your right hand, O LORD, has shattered the enemy.
Having read how that complete victory of Israel over the Egyptians was obtained, here we are told how it was celebrated; those that were to hold their peace while the deliverance was in working (Exo 14:14) must not hold their peace now that it was wrought; the less they had to do then the more they had to do now.
Commenting on Exodus 15:1-21
Thy right hand, O Lord, is become glorious in power,.... In bringing the children of Israel out of Egypt, and through the Red sea, and in the destruction of Pharaoh and the Egyptians; and so the right hand of Christ, expressive of his power, he has in and of himself, and is the same with his Father's, and is mighty, yea, almighty, is become glorious...
Thy right hand - Thy omnipotence, manifested in a most extraordinary way.