John 20
"Jesus came, the doors having been shut, and stood in their midst ..." (v26). John mentions two times in this chapter that Jesus came "when the doors were shut" (v19). Jesus, having broken the boundary of death, was breaking other boundaries as well. He breathed on the disciples, saying "Receive the Holy Spirit" (v22), meaning that they were going to continue His ministry on earth. Something extraordinary was happening.
Risen, Jesus continues this boundary-breaking, Spirit-breathed ministry through us. Nothing is impossible in His name.