1 Corinthians 2:11

Shepherd of Hermas Commandment Eleventh

For no spirit given by God requires to be asked; but such a spirit having the power of Divinity speaks all things of itself, for it proceeds from above from the power of the Divine Spirit. But the spirit which is asked and speaks according to the desires of men is earthly,[2]

Tertullian Against Marcion Book II

and He ought rather to have been that; as if any one knew what is in God, except the Spirit of God.[23]

Tertullian Against Hermogenes

This alone, indeed, knew the mind of the Lord. For "who knoweth the things of God, and the things in God, but the Spirit, which is in Him? "[165]

Tertullian Against Praxeas

which He had known most intimately, even from the beginning. "For what man knoweth the things which be in God, but the Spirit which is in Him? "[88]

Origen Against Celsus Book IV "For no man knoweth the things of a man, save the spirit of man which is in him: even so the things of God knoweth no man, but the Spirit of God."[133]

Origen Commentary on Matthew Book XIII

and elsewhere, "No one of men knoweth the things of a man save the spirit of the man which is in him; even so the things of God none knoweth save the Spirit of God."[20]

Origen Commentary on Matthew Book XIV

But it is probable also that some other things could be added to the number by a more competent investigator, the exposition and interpretation of which I think to be beyond the power of man, and requiring the Spirit of Christ who spoke them in order that Christ may be understood as He spoke; for as "no one among men knows the things of the man, save the spirit which is in him," and "no one knows the things of God, save the Spirit of God,"[40]