Were amazed - Amazed at his sudden and remarkable change.
That destroyed - That opposed; laid waste; persecuted. Compare Galatians 1:13.
For that intent - With that design, that he might destroy the church at Damascus.
Related Commentaries of Acts 9:21
Acts 9:21
21 But all that heard him were amazed, and said; Is not this he that destroyed them which called on this name in Jerusalem, and came hither for that intent, that he might bring them bound unto the chief priests?