Augustine of Hippo
Catena Aurea · Johannesevangelium 8
Then said Jesus to those Jews which believed on him, If ye continue in my word, then are ye my disciples indeed; And ye shall know the truth, and the truth shall make you free. They answered him, We be Abraham’s seed, and were never in bondage to any man: how sayest thou, Ye shall be made free? Jesus answered them, Verily, verily, I say unto you, Whosoever committeth sin is the servant of sin. And the servant abideth not in the house for ever: but the Son abideth ever. If the Son therefore shall make you free, ye shall be free indeed. And ye shall know the truth.
(Tr. xli. 8) Do not then abuse your freedom, for the purpose of sinning freely; but use it in order not to sin at all. Your will will be free, if it be merciful: you will be free, if you become the servant of righteousness.