To them it was revealed, that not to themselves, but to you, did they minister these things, which now have been announced to you through those who preached the Gospel to you by the Holy Spirit sent out from heaven; which things angels desire to look into.

 Peter comes to the actual situation in life in which his readers found themselves. Their Christianity had always made them unpopular, but now they were facing almost certain persecution. Soon the storm was going to break and life was going to be an agonizing thing. In face of that threatening situation Peter in effect reminds them of three reasons why they can stand anything that may come upon them. 