15 and you killed the Author of life, whom God raised from the dead. To this we are witnesses. 16 And his name—by faith in his name—has made this man strong whom you see and know, and the faith that is through Jesus has given the man this perfect health in the presence of you all. 17 “And now, brothers, I know that you acted in ignorance, as did also your rulers. 18 But what God foretold by the mouth of all the prophets, that his Christ would suffer, he thus fulfilled. 19 Repent therefore, and turn back, that your sins may be blotted out,
Peter and John had just walked into the temple and to the amazement of all there, with them was the lame beggar who was now walking, but now just walking, he was leaping. It was a miracle and all the people were praising God. But in that moment Peter did not focus on the miracle, but on the gospel and on Jesus Christ. For the apostles throughout the book of Acts miracles were not an end to themselves, but they were a means to create opportunities to share the gospel, a chance to call people to repentance that their sins may be forgiven. So when the Lord delivers you from the suffering of this world don’t just praise him for his grace, but us it to point people to Christ and the gospel.