Augustine of Hippo
Patristic
A.D. 354–430
“If therefore You are "true," "Look upon me, and have mercy upon me: give power unto Your servant." Because You are "true," "give power unto Your servant" [Psalm 86:16]. Let the time of patience pass away, the time of judgment come. How, "give power"? The Father judges no man, but has committed all judgment unto the Son. [John 5:22] He rising again will come even to earth Himself to judge: He will appear terrible who appeared despicable. He will show His power, who showed His patience; on the Cross was patience; in the judgment will be power. For He will appear as Man judging, but in glory: because "as you saw Him go," said the Angels, "so He will come." [Acts 1:11] His very form shall come to judgment; therefore the ungodly also shall see Him: for they shall not see the form of God. For blessed are the pure in heart, for they shall see God. [Matthew 5:8] ...In the vision of the Father there is also the vision of the Son: and in the vision of the Son there is also the vision of the Father. Therefore He adds a consequence, and says: "Do you not know that I am in the Father, and the Father in Me?" [John 14:10] that is, both in Me seen the Father is seen, and in the Father seen the Son too is seen. The vision of the Father and the Son cannot be separated: where nature and substance is not separated, there vision cannot be separated. For that you may know that the heart ought to be made ready for that place, to see the Divinity of the Father and Son and Holy Spirit, in which though not seen we believe, and by believing cleanse the heart that there may be able to be sight: the Lord Himself says in another place, "He that has My commands and keeps them, he it is that loves Me: and he that loves Me shall be loved by My Father: and I will love him, and will manifest Myself unto him." [John 14:21] Did they not see Him, with whom He was talking? They both saw Him, and did not see Him? They saw something, they believed something: they saw Man, they believed in God. But in the Judgment they shall see the same Lord Jesus Christ as Man, together with the wicked: after the Judgment, they shall see God, apart from the wicked.”