15.All things that the Father hath are mine. As it might be thought that Christ took away from the Father what he claimed for himself, he acknowledges that he has received from the Father all that he communicates to us by the Spirit. When he says that all things that the Father hath are his, he speaks in the person of the Mediator, for we must draw out of his fullness, (Joh_1:16.) He always keeps his eye on us, as we have said. We see, on the other hand, how the greater part of men deceive themselves; for they pass by Christ, and go out of the way to seek God by circuitous paths.
Other commentators explain these words to mean, that all that the Father hath belongs equally to the Son, because he is the same God. But here he does not speak of his hidden and intrinsic power, as it is called, but of that office which he has been appointed to exercise toward us. In short, he speaks of his riches, that he may invite us to enjoy them, and reckons the Spirit among the gifts which we receive from the rather by his hand.