Acts 2:18

"And your sons shall prophesy." And yet, he says, not yours this achievement, this distinction; the gift has passed over to your children. Himself and his company he calls their sons, and those whom he is addressing he calls his and their fathers. "And your young men shall see visions, and your old men shall dream dreams; and on My servants and on My handmaidens I will pour out in those days of My Spirit; and they shall prophesy." So far he shows that he and his have found favor, in that they had received the Spirit; not so they whom he is addressing; for that they had crucified the Lord. So Christ also, willing to mitigate their wrath, said, "By whom do your sons cast out devils?" He did not say, My disciples; for indeed it seemed a flattering mode of expression. And so Peter also did not say, "They are not drunk, but speak by the Spirit:" but he takes refuge with the prophet, and under shelter of him, so speaks. As for the accusation of drunkenness, he cleared himself of that by his own assertion; but for the grace, he fetches the prophet as witness.

"I will pour out," etc. And then, that he may not seem to limit the privilege to the sons only, he subjoins, "And your old men shall dream dreams." Mark the sequence. First sons; just as David said, "Instead of thy fathers, were begotten thy sons." And again Malachi; "They shall turn the hearts of the fathers to the children. And on my handmaidens, and on my servants." This also is a token of excellence, for we have become His servants, by being freed from sin. And great is the gift, since the grace passes over to the other sex also, not as of old, it was limited to just one or two individuals, as Deborah and Huldah.

He did not say that it was the Holy Ghost, neither did he expound the words of the prophet; but he merely brings in the prophecy to fight its own battle. As yet also he has said nothing about Judas; and yet it was known to all what a doom and punishment he had undergone; for nothing was more forcible than to argue with them from prophecy: this was more forcible even than facts. For when Christ performed miracles, they often contradicted Him. But when Christ brought forward the prophet, saying, "The Lord said unto my Lord, Sit Thou on my right hand," they were silent, and "no man," we read, "was able to answer Him a word." And on all occasions He Himself also appealed to the Scriptures; for instance, "If he called them gods to whom the word of God came." And in many places one may find this. On this account here also Peter says, "I will pour out of my spirit upon all flesh;" that is, upon the Gentiles also. But he does not yet reveal this, nor give interpretations; indeed, it was better not to do so (as also this obscure saying, "I will show wonders in heaven above," put them the more in fear because it was obscure.) And it would have been more an offence, had it been interpreted from the very first. Then besides, even as plain, he passes over it, wishing to make them regard it as such. But after all, he does interpret to them anon, when he discourses to them upon the resurrection, and after he has paved the way by his discourse.

Then he brought forward the prophecy of Joel, nowhere mentioning Christ here, and of the signs of which they were eyewitnesses, or that this had been his promise. For if he had said this, he would have overturned everything and exposed it to scorn; but …

I see, however, that the special coming of the Holy Spirit to people is declared to have happened after Christ's ascension into heaven rather than before his coming into the world. Before that time the gift of the Holy Spirit was bestowed on prophets only and on a few others among the people who happened to have proved worthy of it.