Expositor's Bible Commentary Commentary Acts 3:10

"and they took knowledge of him, that it was he that sat for alms at the Beautiful Gate of the temple; and they were filled with wonder and amazement at that which had happened unto him." — Acts 3:10 (ASV)

The healing is described as an instantaneous one, accomplishing in a moment what God in his providence through the normal healing processes usually takes months to do. The effect on the man was traumatic; he began walking about and jumping and praising God. As for the people, they were “filled with wonder and amazement.” What was taking place was but a token, to those who had eyes to see, of the presence of the Messianic Age, of which the prophet had long ago predicted: “Then will the lame leap like a deer” (Isaiah 35:6).