The Lord] Jehovah—so throughout the song, in which the might of Israel's God is contrasted with the powerlessness of the Egyptian idols: see e.g. Exodus 15:3; Exodus 15:6-7; Exodus 15:11.
Related Commentaries of Exodus 15:1
Exodus 15:1
1 Then sang Moses and the children of Israel this song unto the LORD, and spake, saying, I will sing unto the LORD, for he hath triumphed gloriously: the horse and his rider hath he thrown into the sea.