Augustine of Hippo

For their own misery has taught them, which happiness had made negligent, alas, what an evil thing it is to fornicate against the Lord by presuming upon themselves; oh how good it is to cling to the Lord, always thinking humbly. For withdrawing from that simple and singular good into the multitudes of pleasures, and into the love of the world and corruptions of the earth, this is to fornicate against the Lord. To this one it is called out: "A harlot's face has been made for you, and you have become shameless in your entirety."