Acts 3:7

Acts 3:7. And he took him by the right hand. To the word of command, Peter, following his Master's example in such cases (see Mark 9:27), grasps him by the right hand, thus encouraging him to obey the command to arise. On the use of such outward instrumentality, Chrysostom remarks: ‘So, too, Christ did; ofttimes would He heal with a word, ofttimes with an act; frequently, too, He would stretch out His hand where their faith was too weak, that it (the miracle of healing) might not seem to have worked of itself'. (Chrysostom, quoted in Alford).

His feet and ankle bones received strength. Commentators remark on the accuracy and exactness of the description. They are the words of one who had received the professional training of a physician.