Irenaeus of Lyons, Against Heresies 4.33

The true spiritual disciple receives the Spirit of God. From the beginning the Spirit was present to humanity in every arrangement of God. He announced the future, revealed the present, and narrated the past. He judges all things, yet no one judges him.

For he judges the nations—creatures who serve the creature rather than the Creator, consuming their entire effort in vain with a depraved mind (Rom 1:25). He also judges the Jews, who do not perceive the word of liberty nor wish to go free, even though their Liberator stands present among them. They pretend to serve outside the law at the wrong time, as if God needed anything, and they refuse to recognize or understand Christ's advent, which he accomplished for human salvation. All the prophets foretold two advents of his (Acts 3:18).

In the first, he was made flesh, knowing how to bear weakness. He sat upon a donkey's colt (Zech 9:9). He became the stone the builders rejected (Ps 118:22). He was led like a sheep to slaughter. By stretching out his hands he dissolved Amalek. He gathered the scattered children from the ends of the earth into the Father's fold. He remembered his dead who slept, and descended to them so that he might raise them.

But the second advent will be different: he will come upon the clouds, bringing a day that burns like a furnace. He will strike the earth with the word of his mouth and slay the wicked with the breath of his lips (Isa 11:4). He will hold a winnowing fork in his hand, clear his threshing floor, gather the wheat into his barn, and burn the chaff with unquenchable fire (Matt 3:12).