John Chrysostom
Catena Aurea · Johannesevangelium 4
The woman saith unto him, Sir, I perceive that thou art a prophet. Our fathers worshipped in this mountain; and ye say, that in Jerusalem is the place where men ought to worship. Jesus saith unto her, Woman, believe me, the hour cometh, when ye shall neither in this mountain, nor yet at Jerusalem, worship the Father. Ye worship ye know not what: we know what we worship: for salvation is of the Jews. But the hour cometh, and now is, when the true worshippers shall worship the Father in spirit and in truth: for the Father seeketh such to worship him. God is a Spirit: and they that worship him must worship him in spirit and in truth.
(Hom. xxxii. 2) Or it signifies that God is incorporeal; and that therefore He ought to be worshipped not with the body, but with the soul, by the offering up a pure mind, i. e. that they who worship Him, must worship Him in spirit and in truth. The Jews neglected the soul, but paid great attention to the body, and had various kinds of purification. Our Lord seems here to refer to this, and to say, not by cleansing of the body, but by the incorporeal nature within us, i. e. the understanding, which He calls the spirit, that we must worship the incorporeal God.