2 Bible Verses about Feast Of Weeks

SO when the day of Pentecost was fully come, they were all with unanimity assembled together. And there came suddenly from heaven a sound as it were of a rushing mighty wind, and it filled the whole house where they were sitting. And there was an appearance to them of divided tongues, as of fire, and it rested on every one of them.read more.
And they were all filled with the Holy Ghost, and they began to speak with other tongues, as the Spirit gave them power to express themselves.