101. (7) Thus God became Man and Man became God in one Person. That Jehovah God became Man, and Man became God in one Person, follows as a conclusion from all the preceding propositions of this chapter, especially from these two: that Jehovah the Creator of the universe descended and assumed a Human that He might redeem and save men (see above, n. 82-84), and that the Lord by the acts of redemption united Himself to the Father, and the Father united Himself to Him, thus reciprocally and mutually (n. 97-100). From that reciprocal union it is very evident that God became Man and Man became God in one Person; and from the union of the two as being a union like that of soul and body, the same conclusion follows. That this is in accordance with the faith of the church at this day, as derived from the Athanasian Creed, may be seen above (n. 98); that it is also in accordance with the faith of the Evangelical churches may be seen in that chief of their orthodox books, called the Formula Concordi where it is firmly established, both from Sacred Scripture and from the Fathers, as also by rational arguments, that the human nature of Christ was exalted to Divine majesty, omnipotence and omnipresence, and that in Christ Man is God, and God is Man (see pp. 607, 765). Moreover, it has been shown in this present chapter that Jehovah God as to His Human is called in the Word "Jehovah," "Jehovah God," "Jehovah of Hosts," and "the God of Israel." Therefore Paul says:
That in Jesus Christ dwelleth all the fullness of Divinity bodily (Col. 2:9);
That Jesus Christ, the Son of God, is the true God and eternal life (1 John 5:20).
That "the Son of God" means strictly His Human may be seen above (n. 92 and the following numbers). Furthermore, Jehovah God calls both Himself and Him Lord; for we read:
The Lord said unto my Lord, Sit thou at My right hand (Ps. 110:1);
and in Isaiah:
For unto us a Child is born, unto us a Son is given; whose name is God, the Father of Eternity (9:6).
The Lord as to His Human is also meant by "the Son" in David:
I will declare the decree, Jehovah said unto me, Thou art My Son, this day I have begotten Thee. Kiss the Son, lest He be angry, and ye perish in the way (Ps. 2:7, 12).
Here no Son from eternity is meant, but the Son born in the world; for this is a prophecy about the Lord who was to come; consequently it is called a "decree" which Jehovah declared to David; and in the same Psalm it is said previously:
I have anointed my King upon Zion (verse 6);
and further on:
I will give to Him the nations for an inheritance (verse 8).
Therefore "this day" does not mean from eternity, but in time; for with Jehovah the future is present.