Expositor's Bible Commentary Commentary Acts 4:9

"if we this day are examined concerning a good deed done to an impotent man, by what means this man is made whole;" — Acts 4:9 (ASV)

Peter’s defense focuses on the healing of the crippled man as being (1) “an act of kindness,” which (2) was effected “by the name of Jesus Christ of Nazareth, whom you crucified but whom God raised from the dead.” His message is specifically addressed to the “rulers and elders of the people,” though it also has “everyone else in Israel” in mind.