106. It is one thing to be named Son according to the divine Substance, it is another thing to be so called according to the adoption of human flesh. For, according to the divine Generation, the Son is equal to God the Father; and, according to the adoption of a body, He is a servant to God the Father. “For,” it says, “He took upon Him the form of a servant.” The Son is, however, one and the same. On the other hand, according to His glory, He is Lord to the holy patriarch David, but his Son in the line of actual descent, not abandoning aught of His own, but acquiring for Himself the rights that go with the adoption into our race.