Acts 1:3

So then, the Lord Jesus, after He had spoken to them, was taken up into heaven and sat down at the right hand of God.

But when they believed Philip proclaiming the good news about the kingdom of God and the name of Jesus Christ, they were being baptized, both men and women.

and for many days He appeared to those who came up with Him from Galilee to Jerusalem, the very ones who are now His witnesses to the people.

And after he entered the synagogue, he continued speaking out boldly for three months, reasoning and persuading them about the kingdom of God.

And when they had set a day for Paul, they came to him at his lodging in large numbers; and he was explaining to them by solemnly bearing witness about the kingdom of God and trying to persuade them concerning Jesus, from both the Law of Moses and from the Prophets, from morning until evening.

After that, He appeared to James, then to all the apostles,