The deep significance of Jesus’ crucifixion and resurrection are found in the Passover.
So, why did Peter choose Joel’s prophecy to explain what was happening? Yes, yes, he was saying what the Spirit was giving him to say. But, why Joel, in particular? Because of who were in that upper room, praying and waiting. Because of who were pouring out into the streets of Jerusalem, publicly prophesying and evangelizing in foreign languages. Women
Many see these next verses as the greatest prophecy of the future in the whole Bible, the fulfillment happening when Jesus comes to establish His millennium kingdom.
The lamp shining in the Holy Place represented, in part, the indwelling glory of God in the sacred temple of the Lord, and with the people of God.