Read Luke 24:44-53
44 Then he said to them, “These are the very things I told you about while I was still with you: everything written about me in the Law of Moses, the writings of the prophets, and the Psalms had to come true.”
45 Then he opened their minds to understand the Scriptures, 46and said to them, “This is what is written: the Messiah must suffer and must rise from death three days later, 47and in his name the message about repentance and the forgiveness of sins must be preached to all nations, beginning in Jerusalem. 48You are witnesses of these things. 49And I myself will send upon you what my Father has promised. But you must wait in the city until the power from above comes down upon you.”
50 Then he led them out of the city as far as Bethany, where he raised his hands and blessed them. 51As he was blessing them, he departed from them and was taken up into heaven.h 52They worshipped him and went back into Jerusalem, filled with great joy, 53and spent all their time in the Temple giving thanks to God.
In this gospel reading Jesus speaks to the disciples, opening their minds to understand the scriptures. He then promises them the help of the Holy Spirit in going out into the world to spread the good news.