Psalms 50:2

Our God will come openly. Our God is Christ. Christ will come openly in the flesh. We, therefore, understand that openly means "in the flesh." And this flesh is perceived by the senses.

His charm, in fact, was evident from [Zion] even in the Old Testament. I mean, the temple, the Holy of Holies, all the worship and the living of the old legislation, the multitude of priests, sacrifices, whole burnt offerings, sacred hymns and psalmody and everything stemming from it—the type of things to come from this was sketched out ahead of time. But when the reality arrived, it took its beginning from there as well. From there shone out the cross.… There occurred the resurrection, there the ascension, there the prelude and commencement of our salvation, there the ineffable teachings began to be proclaimed. There the Father was first revealed, the Only-begotten known and the wonderful grace of the Spirit given. And there the apostles took the first steps of preaching about spiritual matters, about the gifts, the powers, the promise of good things to come. Considering all this, the inspired author calls it his maturity. God's beautiful maturity, you see, is his goodness and lovingkindness and his beneficence to all people.

But we have heard the world called from the rising of the sun unto the going down: whence does He begin to call, who has called? This thing also hear ye: "Out of Sion is the semblance of His beauty" [Psalm 50:2]. Evidently the Psalm does agree with the Gospel, which says, "Throughout all nations, beginning at Jerusalem." [Luke 24:47] Hear, "Throughout all nations:" He has called the world from the rising of the sun unto the going down. Hear, "Beginning at Jerusalem:" "Out of Sion is the semblance of His beauty." Therefore, "He has called the world from the rising of the sun unto the going down," agrees with the words of the Lord, who says, "It behooved Christ to suffer, and to rise from the dead the third day; and that repentance and remission of sins should be preached in His Name throughout all nations." [Luke 24:46-47] For all nations are from the rising of the sun unto the going down. But that, "Out of Sion is the semblance of His beauty." that thence begins the beauty of His Gospel, that thence He began to be preached, being "beautiful in form beyond the sons of men," agrees with the words of the Lord, who says, "Beginning at Jerusalem." New things are in tune with old, old things with new: the two Seraphim say to one another, "Holy, holy, holy, Lord God of Sabaoth." [Isaiah 6:3] The two Testaments are both in tune, and the two Testaments have one voice: let the voice of the Testaments in tune be heard, not that of pretenders disinherited. This thing then has the God of gods done, "He has called the world from the rising of the sun unto the going down, His semblance going before out of Sion." For in that place were His disciples, [Acts 1:4] who received the Holy Ghost sent from heaven on the fiftieth day after His resurrection. Thence the Gospel, thence the preaching, thence the whole world filled, and that in the Grace of Faith.