2 But in order to teach us that this very believing is matter of gift, not of desert, He says, “As I have said unto you, no man comes unto Me, except it were given him of My Father.” Now as to where the Lord said this, if we call to mind the foregoing words of the Gospel, we shall find that He had said, “No man comes unto Me, except the Father which has sent Me draw him.” He did not lead, but draw. This violence is done to the heart, not the body. Why then do you marvel?
Believe, and you come; love, and you are drawn. Do not suppose here any rough and uneasy violence; it is gentle, it is sweet; it is the very sweetness that draws you. Is not a sheep drawn, when fresh grass is shown to it in its hunger? Yet I imagine that it is not bodily driven on, but fast bound by desire. In such wise do you come too to Christ; do not conceive of long journeyings; where you believe, there you come. For unto Him, who is everywhere we come by love, not by sailing.
But forasmuch as even in this kind of voyage, waves and tempests of various temptations abound; believe in the Crucified; that your faith may be able to ascend the Wood. You shall not sink, but shall be borne upon the Wood. Thus, even thus, amid the waves of this world did he sail, who said, “But God forbid that I should glory, save in the Cross of our Lord Jesus Christ.”
Source: Sermons on Selected Lessons of the New Testament (New Advent)