(Ibid.) "The L–rd will reign for ever and ever": Why? (Ibid. 19) "For the horse of Pharaoh came with its chariot and its riders into the sea, and the L–rd turned back upon them the waters of the sea, etc."
God Reigns Forever Because He Drowned Pharaoh's Horses in the Sea
Mekhilta Tractate Shirah 10:11