Isaiah 12:2

Reader! take especial notice of what the hymn expresseth; namely, that the Lord God is the sinner's salvation. It is not enough to say, or sing, that the Lord hath brought us to salvation, but that he himself is our salvation; not that we have salvation from him, but salvation in him. He himself is the whole of it. Reader! observe the twofold name upon this occasion; Jah, and Jehovah. I do not presume to say as much, but may it not, with reverence, be asked, Is it not to intimate the whole persons of the Godhead, Father, Son, and Holy Ghost, as God, and Jesus Jehovah as Mediator? And how can any child of God who sings this song with the Spirit, and the understanding also, say otherwise, than I will trust and not be afraid? W hat can they have to fear, who have Jehovah in his threefold character of person for their salvation?