What was the question Peter asked when they were come together, after 40 days of INFALLIBLE proofs of the resurrection of Christ and the post-resurrection ministry of Christ to the 11?
"Lord, wilt thou at this time restore again the kingdom to Israel?" (Acts 1:6).
THAT'S what was on their minds. THAT'S the burning question Peter and the 10 (Matthias not yet numbered with them) wanted the answer to. NOT Christ dying for their sins. NOT Christ's blood being their redemption, justification, reconciliation to God, being made nigh by the blood of Christ, or the righteousness of God in Him, or even Christ being made to be sin for them. NONE of those things were on their minds. The most pressing thing and urgent thing was "wilt thou at this time restore again the kingdom to Israel?"...
That's because they knew NOTHING of the mystery, because it was still hid in God. They knew prophecy only. And according to prophecy, Christ the Messiah was going to return and set up His kingdom and they would be seated on 12 thrones, judging the twelve tribes of Israel.
I will politely add you are putting words and thoughts into posts where I make no such claims of Law Vs. Grace. Where we differ is the gospel of Jesus Christ began when He said:
"It is finished."
When Jesus Christ said in Luke chapter 24:
“Thus it is written, that the Christ would suffer and rise again from the dead the third day, 47 and that repentance for forgiveness of sins would be proclaimed in His name to all the nations, beginning from Jerusalem. 48 You are witnesses of these things. 49 And behold, I am sending forth the promise of My Father upon you; but you are to stay in the city until you are clothed with power from on high.”
All nations would receive this good news Jesus delivered to his apostles. It is the same good news given to Paul by Jesus Christ by revelations/visions.
Those Words by Jesus Christ have not and will not pass away:
Heaven and earth will pass away, but My words will not pass away.