Origen
Catena Aurea · Matthäusevangelium 25
When the Son of man shall come in his glory, and all the holy angels with him, then shall he sit upon the throne of his glory: And before him shall be gathered all nations: and he shall separate them one from another, as a shepherd divideth his sheep from the goats: And he shall set the sheep on his right hand, but the goats on the left. Then shall the King say unto them on his right hand, Come, ye blessed of my Father, inherit the kingdom prepared for you from the foundation of the world: For I was an hungred, and ye gave me meat: I was thirsty, and ye gave me drink: I was a stranger, and ye took me in: Naked, and ye clothed me: I was sick, and ye visited me: I was in prison, and ye came unto me. Then shall the righteous answer him, saying, Lord, when saw we thee an hungred, and fed thee? or thirsty, and gave thee drink? When saw we thee a stranger, and took thee in? or naked, and clothed thee? Or when saw we thee sick, or in prison, and came unto thee And the King shall answer and say unto them, Verily I say unto you, Inasmuch as ye have done it unto one of the least of these my brethren, ye have done it unto me. Then shall he say also unto them on the left hand, Depart from me, ye cursed, into everlasting fire, prepared for the devil and his angels: For I was an hungred, and ye gave me no meat: I was thirsty, and ye gave me no drink: I was a stranger, and ye took me not in: naked, and ye clothed me not: sick, and in prison, and ye visited me not. Then shall they also answer him, saying, Lord, when saw we thee an hungred, or athirst, or a stranger, or naked, or sick, or in prison, and did not minister unto thee? Then shall he answer them, saying, Verily I say unto you, Inasmuch as ye did it not to one of the least of these, ye did it not to me.
Or, we need not understand this of a local gathering together, but that the nations shall be no more dispersed in divers and false dogmas concerning Him. For Christ’s divinity shall be manifested so that not even sinners shall any longer be ignorant of Him. He shall not then shew Himself as Son of God in one place and not in another; as He sought to express to us by the comparison of the lightning. So as long as the wicked know neither themselves nor Christ, or the righteous see through a glass darkly, (1 Cor. 13:12.) so long the good are not severed from the evil, but when by the manifestation of the Son of God all shall come to the knowledge of Him, then shall the Saviour sever the good from the evil; for then shall sinners see their sins, and the righteous shall see clearly to what end the seeds of righteousness in them have led. They that are saved are called sheep by reason of that mildness which they have learnt of Him who said, Learn of me, for I am meek and lowly, (Mat. 11:29.) and because they are ready to go even to death in imitation of Christ, who was led as a sheep to the slaughter. (Isa. 53:7.) The wicked, are called goats, because they climb rough and rugged rocks, and walk in dangerous places.