Gospel
John 20.19-23
It was evening on the day Jesus rose from the dead, the first day of the week, and the doors of the house where the disciples had met were locked for fear of the Jews. Jesus came and stood among them and said, “Peace be with you.” After he said this, he showed them his hands and his side. Then the disciples rejoiced when they saw the Lord.
Jesus said to them again, “Peace be with you. As the Father has sent me, so I send you.”
When he had said this, he breathed on them and said to them, “Receive the Holy Spirit. If you forgive the sins of any, they are forgiven them; if you retain the sins of any, they are retained.”
or
John 15.26-27; 16.12-15
Jesus said to the disciples: “When the Advocate comes, whom I will send to you from the Father, the Spirit of truth who comes from the Father, he will testify on my behalf. You also are to testify because you have been with me from the beginning.
“I still have many things to say to you, but you cannot bear them now. When the Spirit of truth comes, he will guide you into all the truth; for he will not speak on his own, but will speak whatever he hears, and he will declare to you the things that are to come. He will glorify me, because he will take what is mine and declare it to you.
“All that the Father has is mine. For this reason I said that he will take what is mine and declare it to you.”