Peter has just described wonders and signs of God's coming wrath (blood, fire, & smoke) and immediately tells his Jewish audience the only way of escape is by “calling on the name of the Lord”. But then, without hesitation, Peter explains that the name of the Lord on whom they must call is, in fact, Jesus the Nazarene, whom they crucified! We find here in Peter’s message the parallel truths of man’s responsibility and the definite plan of God. And it doesn’t seem to occur to Peter that the “definite plan and foreknowledge of God” deprived men of the responsibility and consequences of their actions. What happened at Calvary had been God's plan from the beginning for the redemption of mankind. God has not tasked Christians with the task of reconciling this apparent paradox. But He has tasked Christians with the task of being "His witnesses...to the end of the earth (Acts 1:8). Christian – Church – you have been sent! These Jews saw the cross as an obstacle to belief, but Christians see the cross as the means of their salvation. Death was unable to hold Him because Jesus’ death broke the power of sin. He had not personally earned the wages of sin (Rom. 6:23), but instead voluntarily took upon Himself the sins of others. The main point of Peter's sermon stands - “You have killed Him” Peter says, “but God has raised Him.” We may not have driven the nails, but the blame for Christ’s death falls on me & you. We go our own way, do our own thing, and don’t want to take any responsibility when things go wrong. What should we do? "Repent and be baptized every one of you in the name of Jesus Christ for the forgiveness of your sins, and you will receive the gift of the Holy Spirit.” [v.38]