18. Father and Son is the Lord alone. He is so called for the reason that He was in the world in the state of union. In the Old Testament also He is called Jehovah and the Holy One of Israel; here are two names, but nevertheless one, namely, the Lord. He is called Jehovah God, he is called Lord, he is called Jehovah and God, also Jehovah and Lord, and also Jehovah Zebaoth. (Let the passages be quoted in which he is called "Jehovah" and "the Holy One of Israel," and in which he is called "Jehovah" and "God.")