3 explaining and proving that the Messiah had to suffer and rise from the dead. “This Jesus I am proclaiming to you is the Messiah,” he said.

Read Acts 17:3 Using Other Translations

Opening and alleging, that Christ must needs have suffered, and risen again from the dead; and that this Jesus, whom I preach unto you, is Christ.
explaining and proving that it was necessary for the Christ to suffer and to rise from the dead, and saying, "This Jesus, whom I proclaim to you, is the Christ."
He explained the prophecies and proved that the Messiah must suffer and rise from the dead. He said, “This Jesus I’m telling you about is the Messiah.”