R. Yossi Haglili says: Had Israel at the sea said: "The L–rd reigns for ever and ever" no people or tongue could ever dominate them. But they said "The L–rd will reign for ever and ever" — in time to come. (You will reign) over Your people, the flock of Your grazing, the seed of Abraham Your loved one, the children of Israel, Your only one, the congregation of Jacob, Your first-born son, the vine that You have nurtured from Egypt, the plant which Your right hand planted.
When Israel Stood at the Red Sea and Sang
Mekhilta Tractate Shirah 10:10