Good Friday is the day that Christians around the world remember the crucifixion of Jesus. (Matthew 27:32-56; Mark 14:25-41; Luke 23:26-56; John 19:16-42) Good Friday is probably a corruption of the name, "God's Friday", although paradoxically His death was for our ultimate good.
Peter preached to the crowd on the day of Pentecost to explain what had happened when Jesus was crucified. He explained that Jesus was accredited by God by miracles, wonders and signs to show that He was the Messiah, who was promised to the Jewish nation through the prophets. Peter added that Jesus was handed over to them by God's set purpose and foreknowledge (Isaiah 53:10).

Why would God sacrifice His only begotton Son? Jesus did nothing to deserve death. He was sinless. He died for our sins. Scripture tells us in John 3:16 that God loved the world so much that He gave His Son (as a sin offering) so that whoever believes in Jesus (believes that His death and resurrection paid our debt of sin to God) will have everlasting life. God raised Jesus to life and declared to Him the title of Christ, the Anointed One, which is to say the Messiah.

Peter went on to say that everyone in the crowd should repent and be baptized, in the name of Jesus Christ for the forgiveness of their sins and they would receive the gift of the Holy Spirit. "The promise is for you and your children and for all who are far off - for all whom the Lord our God will call."

That means the promise is for you also, if you want peace with God. Jesus is our Peace.

At His Last Supper, Jesus told His disciples, "This is My Body. This is My Blood." We recognize His Body and Blood in the sacrament of The Lord's Supper. We also remember the price at which our salvation was bought.