signified, by that that He teacheth us to pray, “Our Father, let thy kingdom come”; and “For thine is the kingdom, the power, and the glory”; and by that it is said, that “He shall come in the glory of His Father”; and by that which St. Paul saith (1 Cor. 15:24), “then cometh the end, when He shall have delivered up the kingdom to God, even the Father”; and by many other most express places.
Our Saviour, therefore, both in teaching and reigning, representeth, as Moses did, the person of God; which God from that time forward, but not before, is called the Father; and being still one and the same substance, is one person as represented by Moses, and another person as represented by His Son the Christ. For “person” being a relative to a “representer,” it is consequent to plurality of representers, that there be a plurality of persons, though of one and the same substance.