Sometimes we can't forgive ourselves even when we testify that Jesus has forgiven us. When we do this we are essentially saying that Jesus' sacrifice was not enough for us. Going back to John 20, Pastor John emphasizes that God's grace, Spirit, and forgiveness is there for us - we just have to accept them.
And when He had said this, He breathed on them and said to them, "Receive the Holy Spirit. If you forgive the sins of any, their sins have been forgiven them; if you retain the sins of any, they have been retained (John 20:22-23 NASB)."
We need to believe His words, they are there for us.
Additionally, service included Moira Pechin's sharing about her rededication to Christ and being baptism before this body of believers.