the day of pentecost in Acts is reminiscent of the Mt. Sinai experience. The thunder and lightning. The voice of God. The sharing of His word to all those who were present.
The significance of the sound of the wind is the voice of the LORD who leads one into all Truth
The flames is likened to the new sacrificial way of life. Before the sacrifices were laid upon the altar. NOW, the altar is the heart/mind. Romans 7:14-23, 1 John 5:3, John 14:21, John 14:15, Romans 12:1-2
One aspect of being a living sacrifice is the sacrifice of praise. Hebrews 13:15 defines it as “the fruit of our lips, giving thanks to His name.” This harkens back to Hosea 14:2, where the prophet painted the memorable word picture of offering “the sacrifices [literally, bull calves] of our lips.”
Becoming a living sacrifice is one of the costs that observing Passover should recall to our memories, giving us substance for sober reflection aimed toward revitalizing our understanding of the significance of this important day.