God has raised this Jesus to life, and we are all witnesses of it. Exalted to the right hand of God, he has received from the Father the promised Holy Spirit and has poured out what you now see and hear. (Acts 2:32-33, NIV)
This is one thing I’ve never gotten over, at least not once it got hold of me.
The testimony of the church comes down to these claims. God raised Jesus. Jesus sits at the right hand of the Father. Jesus has received the Holy Spirit. The Holy Spirit has been poured out upon us.
But the part that was an “aha” thing for me is the “we are all witnesses” part. It was an aha because it underscored something that may not seem remarkable to you. It was an aha because it underscored for me that denying the resurrection is to declare Mary, Peter, Andrew, James, John, and all the rest liars. It is to say they gave false witness. Easter requires a response. Either Peter was telling the truth that Pentecost or he was not. (You could declare that he was delusional, but that functionally the same as calling him a liar. It says the church is founded on fiction.)
Easter requires a response. Do we repent? Are we baptized into the name? Do we receive forgiveness of sin and the gift of the Holy Spirit?
Or do we deny what the church has always declared?
Therefore let the entire house of Israel know with certainty that God has made him both Lord and Christ this Jesus whom you crucified.