Bede

But seeing the power of the miracle, they wonder at the newness of our Lord's doctrine, and are roused to search into what they had heard by what they had seen. Wherefore there follows, And they all wondered &c. For miracles were done that they might more firmly believe the Gospel of the kingdom of God, which was being preached, since those who were promising heavenly joys to men on earth, were showing forth heavenly things and divine works even on earth. …

Catena Aurea by Aquinas ↗