Peter's considered teaching about Jesus and His death
1 Peter 1:2 The believer in the Lord Jesus Christ is 'cleansed by His blood'. Just as the priest in the Old Covenant set the people apart to God by blood sacrifice, so believers today are sanctified to God by the death of the Lord Jesus.
1 Peter 1:19 Peter infers that the ritual of Torah is insufficient. Instead, the voice of John the Baptiser identifies Jesus as the Lamb of God. Peter confirms that Jesus is the Lamb of God who sets us free from the power and penalty of sin. His blood ( blood is a metaphor for a life taken or given), is like the blood of the Passover lamb that protected from the judgement of the LORD.
1 Peter 2:22 Peter witnessed the sufferings of Christ and gives this detail:
"He committed no sin, neither was deceit found in His mouth. When He was reviled He did not revile in return. When He suffered He did not threaten ..........."
Peter identifies Him as the Shepherd suffering for His sheep (John 10)
1 Peter 3:18 - this is special:
"For Christ also suffered once for sins, the righteous for the unrighteous that He might bring us to God, being put to death in the flesh but made alive in the Spirit."
Jesus never sinned, but He died for us sinners, to bring us safely home to God.
This explanation of the death of Jesus changes the narrative from tragedy to triumph. Jesus Christ by dying, makes believers forgiven and fit for heaven.
1 Peter 3:22 The happy ending according to the plan of God
"Jesus Christ has gone into heaven and is at the right hand of God, with angels, authorities and powers having been made subject to Him"
And there is so much more – read the letters written by Peter and Paul and John, and highlight the mentions of the death of the Lord Jesus Christ. – you will be blessed.