Remigius of Auxerre — as excerpted in the Catena Aurea on Matthew 20:1-16

“A denarius was a coin anciently equal to ten sesterces, and bearing the king’s image. Well therefore does the denarius represent the reward of the keeping of the decalogue. And that, Having agreed with them for a denarius a day, is well said, to shew that every man labours in the field of the holy Church in hope of the future reward.”