John Chrysostom
Catena Aurea · Johannesevangelium 6
The Jews then murmured at him, because he said, I am the bread which came down from heaven. And they said, Is not this Jesus, the son of Joseph, whose father and mother we know? how is it then that he saith, I came down from heaven? Jesus therefore answered and said unto them, Murmur not among yourselves. No man can come to me, except the Father which hath sent me draw him: and I will raise him up at the last day. It is written in the prophets, And they shall be all taught of God. Every man therefore that hath heard, and hath learned of the Father, cometh unto me. Not that any man hath seen the Father, save he which is of God, he hath seen the Father.
(Hom. xlvi. 1) But here the Manichees attack us, asserting that nothing is in our own power. Our Lord’s words however do not destroy our free agency, but only shew that we need Divine assistance. For He is speaking not of one who comes without the concurrence of his own will, but one who has many hindrances in the way of his coming.