Jesus is the Apex of God’s Plan

Concerning this salvation, the prophets who prophesied of the grace that was to be yours made careful search and inquiry, inquiring about the person or time that the Spirit of Christ within them indicated, when it testified in advance to the sufferings destined for Christ and the subsequent glory.

1 Peter 1: 10-11

Peter has laid out for the faithful what happened to Jesus.  He has placed it into the grand plan of God for our salvation.  He has set down its value, giving the Jews of the Diaspora the hope of the salvation which was preached to them.  Now, he is turning a corner, building on the foundation of God’s great plan of mercy and salvation by appealing to the “Bible”, the Holy Scriptures that the Jews have, as the proof that Jesus has always been the intended apex of God’s work.

Concerning this salvation,:  Peter is looking now to build on the concept of “salvation”, just outlined in the previous sentences.

the prophets who prophesied of the grace that was to be yours:  Now he looks back, to what we call the Old Testament, connecting what is happening now with what came before

made careful search and inquiry,: This is a citation of their care and authority in carrying out the work they wrote of.

inquiring about the person or time that the Spirit of Christ within them indicated,: The Spirit has come upon this new generation at Pentecost.  Peter is looking to the Spirit that was on previous generations of faith.

when it testified in advance to the sufferings destined for Christ: Peter is placing a historic context for the suffering of Jesus, placing it in the Plan of God as revealed  in God’s work.

and the subsequent glory.: But the suffering of Jesus is not where the story ends.  The glory of Christ is part of the same prophetic story.