This is a very familiar story, but I want to look at it from a particular angle. Suppose Peter had tried to escape the prison on his own. Could he have undone the chains from around his wrists? Would it have been possible for him to “slip by” all the guards? And if he had accomplished all of that, is it likely that he would have been able to open the gate? The Bible tells us that the gate swung open of its own accord, but in fact, what happened is that God opened the gate.
And did you notice when God opened the gate? It wasn't when the angel first appeared to Peter. It wasn't when the iron bars of the prison door swung open. It wasn't when Peter walked past the first and second guard. No, God opened the gate just in time for Peter to walk through it.
What a lesson for us today. Unlike Peter, many times we try to work out our own solutions. Our efforts usually leave us stranded before a closed door with no way of prying it open. No matter how hard we try, things just don't work out the way we think they should. Could it be that we're standing at the wrong door? Or, is it possible that we're at the right door, but that it is not yet time for that door to be opened?
God saw Peter's predicament and provided an escape for him. God sees our situations too, and He will provide a way of escape for us. We, however, must be like Peter and allow God to do the rescuing. He will open the proper doors at the right time. Our only job is to have faith and then walk through the doors that God has opened.