Acts 3:20-21

20The Lord God will help you. Times will come when he will cause your spirit to be strong. He has already chosen Jesus as the one to help you. He is God's Messiah, and God will send him back to you again.

21Jesus must stay in heaven until the day that God will cause everything to become new again. Long ago God gave his prophets a message about this, and they told that message to people.