There is sufficient power in Jesus' name to perform amazing signs and wonders. It is now left for us believers to come to this understanding and have faith when we call on His name.

And on the basis of faith in His name, it is the name of Jesus which has strengthened this man whom you see and know; and the faith which comes through Him has given him this perfect health and complete wholeness in your presence.

Peter and John knew this secret and that was why they were able to meet the need of the lame man.