They arranged to meet Paul on a certain day, and came in even larger numbers to the place where he was staying. From morning till evening he explained and declared to them the kingdom of God and tried to convince them about Jesus from the Law of Moses and from the Prophets.
Paul probably started with Genesis 22, when Abraham took his only son Isaac up one of the mountains of Moriah. Isaac asked his father, “The fire and wood are here, but where is the sacrifice?” Abraham spoke prophetically when he answered, “God will provide Himself a lamb.” Not “God will provide a lamb,” but “God Himself will be the lamb.” [King James translation used.]
Paul might have taken them to Exodus 12 where each family was instructed to place blood on the top of their doorway and on each side — depicting a cross.
He probably took them to Psalm 22:1, which quotes Jesus’ very words from the cross, “My God, my God, why have you forsaken me?” And verse 18 which describes what happened to His possessions, “They divide my garments among them and cast lots for my clothing.”
Paul spent from morning until evening explaining in great detail how the Old Testament pictured and prophesized about Jesus. I would have loved to attend that study! What are the odds that 300 plus prophesies about the Messiah would be fulfilled in one man? After listening to Paul and reviewing all the facts, it would take more faith to not believe in Jesus than to recognize Him as the Messiah.
Google “Old Testament prophesies fulfilled by Jesus”. The mountain of evidence is simply overwhelming. The odds of one man’s life fulfilling every prophesy is 1 in 100,000,000,000,000,000,000,000. That’s pretty convincing. Are you living a life fully convinced Jesus is Lord? Are you telling your friends and loved ones about Him with absolute confidence?