Acts 3:1-8
1 One day Peter and John were going up to the temple at the time of prayer--at three in the afternoon.
2 Now a man crippled from birth was being carried to the temple gate called Beautiful, where he was put every day to beg from those going into the temple courts.
3 When he saw Peter and John about to enter, he asked them for money.
4 Peter looked straight at him, as did John. Then Peter said, "Look at us!"
5 So the man gave them his attention, expecting to get something from them.
6 Then Peter said, "Silver or gold I do not have, but what I have I give you. In the name of Jesus Christ of Nazareth, walk."
7 Taking him by the right hand, he helped him up, and instantly the man's feet and ankles became strong.
8 He jumped to his feet and began to walk. Then he went with them into the temple courts, walking and jumping, and praising God.

In chapter 2:43 Luke said "..many wonders and miraculous signs were done by the apostles. And here he is giving an example for us. The era of mighty miracles did not come to an end when they killed Jesus. But it sparks of a new era, which is even more exciting and powerful. The name of Jesus is just enough for a powerful miracle to take place.

Peter and John are going together here. If they were alive today, they would have told and laughed about how much they fought with each other and how competitive they were. Peter's repentance in the High Priests Courtyard brought about such a great change in them. When two are united together in praying, mighty miracles takes place. Indeed.