Acts 2:1,4 And when the day of Pentecost (Shavuot) was fully come, they were all with one accord in one place. And they were all filled with the Holy Ghost, and began to speak with other tongues, as the Spirit gave them utterance.
In Israel, the celebration of Shavuot took place yesterday. Most Christians would recognize this as the celebration of Pentecost in Acts 2. However, the very first Shavuot took place fifty days after the Israel crossed the Red Sea. It was on this day according to Jewish tradition that the law was given on tablets of stone.
Fifty days after the resurrection of Jesus, Shavuot was celebrated again when the Holy Spirit was poured out and the law of God became written upon the hearts of men. Just as God had promised in Ezekiel and in Jeremiah -- the law of God shall be written upon your heart.
Shavuot is both a celebration of the God's faithfulness in the early harvest and an anticipation of the abundance of the final harvest yet to come. Just as three thousand Jewish people came to faith in Messiah on this day a couple thousand years ago, the day will soon come when the fullness of the Gentiles will be completed and then "all of Israel shall be saved!"
Let's celebrate how the Lord has provided for us today and be assured that this is only a glimpse of our awaited home in glory -- a home that the Lord has spent thousands of years preparing for us!