John Chrysostom
"But to us," he says, "God has revealed this through His Spirit" (1 Cor 2:10). Not through external wisdom, which, like a despised slave, is not permitted to enter within and penetrate the mysteries of the Lord.
Do you see the difference between the two kinds of wisdom? One taught us what even angels did not know. External wisdom did the opposite. It not only failed to teach, but also became an obstacle.
Even when everything had been accomplished, it obscured the events and belittled the Cross. Thus Paul honors us by showing that we were taught not only together with the angels, but by the Spirit Himself.
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Then, showing the greatness of this knowledge, he says that if the Spirit, who knows the mysteries of God, had not revealed it to us, we would not have known it. For God was pleased to keep this matter in mystery.
Therefore we needed such a teacher, one who knew it clearly. "For the Spirit," he says, "searches all things, even the depths of God. For what man knows the things of a man, except the spirit of the man which is in him? So also no one knows the things of God except the Spirit of God. Now we have received, not the spirit of this world, but the Spirit who is from God, that we might know the things freely given to us by God" (1 Cor 2:10-12).
Here the word "searches" does not mean ignorance, but exact knowledge. He uses the same expression concerning God when he says, "He who searches the hearts knows what the mind of the Spirit is" (Rom 8:27).
Having spoken of the Spirit's perfect knowledge, he showed that it is equal to the knowledge of God, as a man's knowledge is equal to itself. Having proved that we have learned all things from Him, and only from Him, he continues: "These things we also speak, not in words taught by human wisdom, but in words taught by the Holy Spirit, comparing spiritual things with spiritual" (1 Cor 2:13).
And now, concerning the making of peace, it is said that peace was made through Him. This does not refer to the essence of the Spirit, who knows the things of God as a man's spirit knows what is in him.
This accords with Paul's words: no one knows, "For what man knows the things of a man, except the spirit of the man which is in him?"
Therefore, if my spirit is alien to my nature, then the Spirit of God is also alien to the divine nature. For the Apostle says, "The Spirit searches all things, even the depths of God."
But the heretic hears "searches" and understands its meaning badly. If the Spirit knew what is in God, he says, He would not search. This searching bears witness to His ignorance.
Therefore, if the Holy Spirit's searching of the depths of God leads you to accuse Him of ignorance, then when you see that God searches men's hearts, will you accuse Him of ignorance?
Hear what Paul says. As he said of the Spirit, "The Spirit searches all things, even the depths of God," so also, speaking wisely about God, he says, "He who searches the hearts knows what the mind of the Spirit is" (Rom 8:27).
Consequently, if God searches because He does not know, then the Spirit also searches because He does not know. But so that you may know that searching belongs not to one ignorant, but to one who knows, he added: "So also no one knows the things of God except the Spirit of God."
Thus he ascribes knowledge to the Spirit, not a reception from nature, but knowledge from nature.