Jerome — as excerpted in the Catena Aurea on Matthew 21:10-16

“But, according to the plain sense; the doves were not in seats, but in cages; unless indeed the sellers of the doves were sitting in seats, but that were absurd, for the seat denotes the dignity of the teacher, which is brought down to nothing when it is mixed with covetousness. Mark also, that through the avarice of the Priests, the altars of God are called tables of money-changers. What we have spoken of Churches let each man understand of himself, for the Apostle says, Ye are the temple of God (2 Cor. 6:16.) Let there not be therefore in the abode of your breast the spirit of bargaining, nor the desire of gifts, lest Jesus, entering in anger and sternness, should purify His temple not without scourging, that from a den of thieves He should make it a house of prayers.”