Peter the apostle is thrown into prison and eventually rescued by an angel of the Lord. We gather several principles from this story: 1) God doesn't promise to answer any and all prayers; 2) it's important to be persistent in prayer; 3) corporate prayer is also essential to the prayer life; 4) God wants us to approach Him in prayer; 5) pray within God's will?the object of our prayers is more important than the quantity of our prayers; 6) prayer is how we can relate to God personally; 7) learn to recognize, remember, and appreciate answered prayers.