Acts 3:4 - Ellicott's Commentary On The Whole Bible

Peter, fastening his eyes upon him... — See Notes on Luke 4:20; Acts 1:10, where the same characteristic word is used. The gaze was one which read character in the expression of the man’s face, and discerned that he had faith to be healed (Acts 3:16). And he, in his turn, was to look on them that he might read in their pitying looks, not only the wish to heal, but the consciousness of power to carry the wish into effect.