1. I will send what the Father promised (49)
Jesus' visit was not just to comfort his disciples. Everything did not end with his death--their task had just begun. Jesus died for all people--but all people didn't know about it. They were to preach repentance and forgiveness of sins to all nations. And he promised to send them the Holy Spirit to empower them. They were to return to Jerusalem and wait until he clothed them with power from on high.
2. He blessed them and left (50-53)
After giving them the world mission command, he took them out to Bethany, lifted up his hands and blessed them. While he was blessing them, he was taken up into heaven. He promised to return in this same way (Acts 1:11). They worshiped him and returned to Jerusalem with great joy. Jesus' mission and Jesus' blessing bring joy to those who accept and worship him.
Application: Lord, today your command comes to me afresh. Give me your Holy Spirit and fill me with joy as I worship you.
One Word: Rejoice to worship Christ