Acts 12:5-7
Peter therefore was kept in prison: but prayer was made without ceasing of the church unto God for him. And when Herod would have brought him forth, the same night Peter was sleeping between two soldiers, bound with two chains: and the keepers before the door kept the prison. And, behold, the angel of the Lord came upon him, and a light shined in the prison: and he smote Peter on the side, and raised him up, saying, Arise up quickly. And his chains fell off from his hands.

Perhaps there is here a direct correlation between the people praying and the angel coming to Peter just in time.  The night which would have been his last is when the angel comes.  Peter had been able to sleep in the prison with a pending death sentence hanging over him, but the church is up praying without ceasing for God to intervene.  They are interceding on his behalf, and because of that, the chains fall off, the door opens, and Peter walks right out of prison.

Let us not neglect to pray about things, because God can work in impossible situations.  God can send an angel.  God can remove chains.  God can open doors.  God can lead us out of danger into safety.  God can save us from our enemies and from certain death.  God can restore us and enable us to go out to continue in our service for Him.  God can move in response to the unceasing prayers of His people.

So let us not give up praying for that seemingly hopeless situation.  Let us not give up praying for someone who needs God’s deliverance.  Let us not cease to pray when a dire need is known.  Because though there may be no human solution, God can still do something.  Though we ourselves can’t go to help, God can send an angel.  Though it may seem like something as simple as prayer couldn’t possibly do any good, Peter standing outside knocking on the door was proof that God was at work.  So let us go before the Lord with every burden on our hearts with the faith that He will hear and respond to our prayers.