CYRIL OF ALEXANDRIA:
Zacchaeus was leader of the tax collectors, a man entirely abandoned to greed, whose only goal was the increase of his gains. This was the practice of the tax collectors, although Paul calls it idolatry,4 possibly as being suitable only for those who have no knowledge of God. Since they shamelessly, openly professed this vice, the Lord very justly joined them with the prostitutes, saying to the leaders of the Jews, “The prostitutes and the tax collectors go before you into the kingdom of God.”5 Zacchaeus did not continue to be among them, but he was counted worthy of mercy at Christ’s hands. He calls near those who are far away and gives light to those who are in darkness.