If we this day be examined of the good deed done to the impotent man, by what means he is made whole; The good deed done - Επι ευεργεσιᾳ, The benefit he has received in being restored to perfect soundness.
Related Commentaries of Acts 4:9
Acts 4:9
9 If we this day be examined of the good deed done to the impotent man, by what means he is made whole;