This Sunday is Pentecost Sunday, but did you know that the First Pentecost was not in Acts 2?
You see Pentecost means 50th, its a greek word and its exactly 50 days from what we call today Easter or Resurrection Sunday.
In the Old Testament, and in Jewish Culture today, these were both feasts. Pentecost was called the Feast of Weeks or Shavuot and what the media calls Easter was the feast of Passover.
Remember, Jesus was the Lamb that was slain during the feast of Passover.
The reason this matters is because so often in the church we dismiss the Old Testament or look at it as less useful, focusing solely on the New Testament. But remember... The Apsotles, Jesus himself and every new testament writer only had the Old Testament and they had a complete understanding of the gospel.
Remember John the Baptist saw Jesus and said, "Behold the Lamb that is Slain for the Sins of the World"... this reference, yes was prophetic, but was based off of his understanding of the Passover Lamb that was slain to cover the homes of the Israelites during Passover from the Angel of Death.
John the Beloved said, "In the Beginning was the Word"... this was based off of - One him seeing the Word of God in Revelation 19:13 "He is clothed with a robe dipped in blood. His name is called The Word of God."but then going back and reading the prophets and many of them saying "And the word of the Lord came to Micah, Ezekiel, Samuel etc. "The word of the Lord, which came to Micah..." Micah 1:1
John had the revelation that the Word... is God and when the Word came... it encountered the Prophets of Old and recently became flesh and dwelt amoung us.
Well Pentecost is when God descended on Mount Sinai in fire and gave Moses the 10 Commandments.
16 So on the third day, in the morning, there was thunder and lightning, and a thick cloud on the mountain, and the sound of an exceedingly loud trumpet. All the people who were in the camp trembled. 17 Then Moses brought the people out of the camp to meet with God, and they stood at the foot of the mountain. 18 Now Mount Sinai was completely covered in smoke because the Lord had descended upon it in fire, and the smoke ascended like the smoke of a furnace, and the whole mountain shook violently. 19 When the sound of the trumpet grew louder and louder, Moses spoke, and God answered him with a voice.
20 The Lord came down on Mount Sinai, on the top of the mountain. And the Lord called Moses up to the top of the mountain, and Moses went up.
Acts 2's baptism of the Holy Spirit is God coming upon you and writing his commandments in your heart and giving you that opportunity of Intimacy with God where your face will glow with his glory like he did with Moses.