Luke 15:20

His meditating confession so won his father to him, that he went out to meet him, and kissed his neck; for it follows, and ran, and fell on his neck, and kissed him. This signifies the yoke of reason imposed on the mouth of man by Evangelical tradition, which annulled the observance of the law.

He runs then to meet thee, because He hears thee within meditating the secrets of thy heart, and when thou wert yet afar off, He runs lest any one should stop Him. He embraces also, (for in the running there is fore-knowledge, in the embrace mercy,) and as if by a certain impulse of paternal affection, falls upon thy neck, that he may raise up him that is cast down, and bring back again to heaven him that was loaded with sins and bent down to the earth. I had rather then be a son than a sheep. For the sheep is found by the shepherd, the son is honoured by the father.

(Hom. 14. in Ep. Rom.) Who after that he said, I will go to my father, (which brought all good things,) tarried not, but took the whole journey; for it follows, And he arose, and came to his father. Let us do likewise, and not be wearied with the length of the way, for if we are willing, the return will become swift and easy, provided that we desert sin, which led us out from our father's house. But the father pitieth those who return. For it is added, And when he was yet afar off.

(Hom. 10. in Ep. Rom. Greg. ubi sup.) Now the father perceiving his penitence did not wait to receive the words of his confession, but anticipates his supplication, and had compassion on him, as it is added, and was moved with pity.

(Hom. de Patre et duob. Fil.) For what else means it that he ran, but that we through the hindrance of our sins cannot by our own virtue reach to God. But because God is able to come to the weak, he fell on his neck. The mouth is kissed, as that from which has proceeded the confession of the penitent, springing from the heart, which the father gladly received.