This is in reply to your 4/20 postin which you stated the following:
"Let us not play with God, brothers, let us fear God and not expect the day of the feast of Pentecost at a time when the day of the feast cannot be (spring, human tradition), let us not connect this feast with another feast (the feast of Weeks), let us not give God's feast of Pentecost another name (the feast of new wine) and let us not establish our own fixed day that is the same for every year in the Gregorian calendar."
"At the feast of Pentecost in Acts 2, on the fiftieth day the Holy Spirit was poured out, and the saving grace of God was given to the people of all nations through the work of the Lord Jesus."
MY REPLY:
The feast of Pentecost if the same thing as the Feast of Weeks according to the following articles. It is also called Shavuot. The Feast of Weeks also takes place on the 50th day just like Pentecost does according to the articles below