In our read-through-the-Bible plan, today we come to 1 Peter 1:10-16. Here is a portion of a sermon by John Piper explaining how we should be utterly amazed at our great salvation.
In other words, to experience something that great and wise and holy people longed to experience but couldn’t should make us feel blessed, thankful.
That’s the same logic we have in our text this morning, 1 Peter 1:10-12. Peter wants us to feel more gratitude and wonder for our salvation because the prophets of God and even the angels of heaven longed to see what we have now experienced through the gospel of Jesus Christ.
As to this salvation [just referred to in verses 5 and 9], the prophets who prophesied of the grace that would come to you made careful search and inquiry, seeking to know what person or time the Spirit of Christ within them was indicating as He predicted the sufferings of Christ and the glories to follow. [In other words, they were searching and longing and desiring to see what the prophets themselves were being moved to predict.] It was revealed to them that they were not serving themselves, but you, in these things which now have been announced to you through those who preached the gospel to you by the Holy Spirit sent from heaven—things into which angels long to look. [Not just prophets, but angels themselves longed to see this salvation.]
So the main point of this paragraph is that we should be amazed at the greatness of our salvation and that this greatness is shown by the fact that prophets of God and angels of heaven long to look into it.