Theophylact of Ohrid
Catena Aurea · Lukasevangelium 5
And after these things he went forth, and saw a Publican, named Levi, sitting at the receipt of custom: and he said unto him, Follow me. And he left all, rose up, and followed him. And Levi made him a great feast in his own house: and there was a great company of Publicans and of others that sat down with them. But their Scribes and Pharisees murmured against his disciples, saying, Why do ye eat and drink with Publicans and sinners? And Jesus answering said unto them, They that are whole need not a physician; but they that are sick. I came not to call the righteous, but sinners to repentance.
Or the publican is he who serves the prince of this world, and is debtor to the flesh, to which the glutton gives his food, the adulterer his pleasure, and another something else. But when the Lord saw him sitting at the receipt of custom, and not stirring himself to greater wickedness, He calls him that he might be snatched from the evil, and follow Jesus, and receive the Lord into the house of his soul.