Jesus promised that his disciples would do greater works than he did (John 14:12; see Mark 16:20). This promise came true through the signs, wonders, and mighty works of the apostles (Acts 2:43; 5:12; 8:4–8).
The apostle Peter showed the power to heal in the name of Jesus Christ of Nazareth (3:6, 16). The healing was immediate and evident (3:8). It led the man to praise God (3:8–9; compare 2:47; 16:25; Luke 2:20; 17:15–18; 18:43; 19:37; 24:53). This event is the first of many displays of divine power given to the apostles in Acts (Acts 4:24–31; 5:12; 6:8; 8:6; 9:33–42; 28:8).