Charles Ellicott Commentary Acts 3:7

"And he took him by the right hand, and raised him up: and immediately his feet and his ankle-bones received strength." — Acts 3:7 (ASV)

His feet.—Better, his soles. The precision with which the process is described is characteristic of the medical historian. Both this term and the “ankle bones” employed are more or less technical, as is also the word translated as “received strength,” literally, were consolidated, the flaccid tissues and muscles being rendered firm and vigorous.