Let's celebrate the Shavuots and the Pentecost - Yom Chamishshiyim
Shavuot is Hebrew, meaning 7weeks. Pentecost is Greek meaning 50/days which in Hebrew is Yom Chamishshiyim.
"Leviticus 23:15-16 And ye shall count unto you from the morrow after the sabbath, from the day that ye brought the sheaf of the wave offering; seven sabbaths shall be complete:
Even unto the morrow after the seventh sabbath shall ye number fifty days; and ye shall offer a new meat offering unto the LORD."
Confusion comes in when you mixed these 2 different terms. 7 weeks after the Unleavened Bread is Shavuot. And another 7 weeks (Shavuot) plus on the morrow (1 day) is Pentecost or Yom Chamishshiyim in Hebrew.
After the seventh Sabbath (Shavuot) you count 50 days (Yom Chamishshiyim).
Shavuot then plus yom Chamishiyim... It's two sets of Jubilee!
During the first set of 7 weeks, we remember the Exodus from Egypt to Mt. Sinai where YHWH offered to be Israel's Sovereign (King), giving them the conditions by speaking from the mountains - 10 commandments with other laws plus ordinances and they accepted. They committed to be betrothed to YHWH and obey Him. That's their Bethrotal.
Then we remember another 7 weeks (Shavuot) which is the writing of the Law on tablets of stone (10 Commandments, with other ordinances, laws of the Court of YHWH etc.), a Ketubah (Hebrew for marriage contract) in preparation to their sealing of the Covenant (in "Marriage") but Israelites broke the Covenant. They made the golden calf, an idol symbolic of an Egyptian god, and worship it on the 49th day after their Betrothal to YHWH. Thus Moses threw the tablets of stone at them and ordered the execution of the 3000 idolaters. 3000 people died.
But when Jesus rose from the dead and ascended into heaven, the Father and the Messiah sent forth the Holy Spirit on the day of Pentecost (fifty days) after His Ascension and 3000 people were baptized, filled with the Holy Spirit. 3000 people resurrected.
Let's celebrate the Shavuots and the Pentecost: The Betrothal and finally the Marriage Covenant!
Let's Feast on Wedding day, Pentecost! Yom Chamishshiyim