Theophylact of Ohrid — as excerpted in the Catena Aurea on Mark 12:1-12

“The stone then which the builders refused, the same has become the head-stone of the corner, that is, of the Church. For the Church is, as it were, the corner, joining together Jews and Gentiles; and this corner has been made by the Lord, and is wonderful in our eyes, that is, in the eyes of the faithful; for miracles meet with detraction from the faithless. The Church indeed is wonderful, as it were resting on wonders, for the Lord worked with the Apostles, and confirmed the word with signs. And this is what is meant, when it is said, This was the Lord’s doing, and it is marvellous in our eyes.”