Origen
Catena Aurea · Matthäusevangelium 19
And, behold, one came and said unto him, Good Master, what good thing shall I do, that I may have eternal life? And he said unto him, Why callest thou me good? there is none good but one, that is, God: but if thou wilt enter into life, keep the commandments. He saith unto him, Which? Jesus said, Thou shalt do no murder, Thou shalt not commit adultery, Thou shalt not steal, Thou shalt not bear false witness, Honour thy father and thy mother: and, Thou shalt love thy neighbour as thyself. The young man saith unto him, All these things have I kept from my youth up: what lack I yet? Jesus said unto him, If thou wilt be perfect, go and sell that thou hast, and give to the poor, and thou shalt have treasure in heaven: and come and follow me. But when the young man heard that saying, he went away sorrowful: for he had great possessions.
Christ also answers thus, because of that He said, What good thing shall I do? For when we depart from evil and do good, that which we do is called good by comparison with what other men do. But when compared with absolute good, in the sense in which it is here said, There is one good, our good is not good. But some one may say, that because the Lord knew that the purpose of him who thus asked Him was not even to do such good as man can do, that therefore He said, Why askest thou me concerning good? as much as to say, Why do you ask me concerning good, seeing you are not prepared to do what is good. But after this He says, If thou wilt enter into life, keep the commandments. Where note, that He speaks to him as yet standing without life; for that man is in one sense without life, who is without Him who said, I am the life. Otherwise, every man upon earth may be, not in life itself, but only in its shadow, while he is clad in a body of death. But any man shall enter into life, if he keep himself from dead works, and seek living works. But there are dead words and living words, also dead thoughts and living thoughts, and therefore He says, If thou wilt enter into life, keep the commandments.