Cyril of Alexandria — as excerpted in the Catena Aurea on Luke 20:9-18

“The Lord of the vineyard also ponders what He should do, not that He is in need of ministers, but that having thoroughly tried every device of human aid, yet His people being in no wise healed, He may add something greater; as He goes on to say, I will send my beloved son: it may be they will reverence him when they see him.”