9 Bible Verses about Feast Of Weeks

Also [you shall observe] the Feast of Harvest (Weeks, Pentecost, or First Fruits), acknowledging the first fruits of your labor, of what you sow in the field. And [third] the Feast of Ingathering (Booths or Tabernacles) at the end of the year when you gather in [the fruit of] your labors from the field.

You shall observe and celebrate the Feast of Weeks (Harvest, First Fruits, or Pentecost), the first fruits of the wheat harvest, and the Feast of Ingathering (Booths or Tabernacles) at the year’s end.

‘Also on the day of the first fruits, when you offer a new grain offering to the Lord at your Feast of Weeks, you shall have a holy [summoned] assembly; you shall do no laborious work.

Then you shall celebrate the Feast of Weeks to the Lord your God with a tribute of a freewill offering from your hand, which you shall give [to Him] just as the Lord your God blesses you;

You shall bring in from your places two loaves of bread as a wave offering, made from two-tenths of an ephah of fine flour; they shall be baked with leaven as first fruits to the Lord.

And you shall offer with the bread seven unblemished lambs, one year old, and one young bull and two rams. They are to be a burnt offering to the Lord, with their grain offering and their drink offerings. It is an offering by fire, a sweet and soothing aroma to the Lord. And you shall sacrifice one male goat as a sin offering and two male lambs, one year old as a sacrifice of peace offerings. The priest shall wave them before the Lord as a wave offering, together with the bread of the first fruits and the two lambs. They are to be holy to the Lord for the priest.

You shall present the burnt offering as a sweet and soothing aroma to the Lord: two young bulls, one ram, seven male lambs one year old; and their grain offering of fine flour mixed with oil; three-tenths [of an ephah] for each bull, two-tenths for the one ram, a tenth for each of the seven male lambs, read more.
and one male goat to make atonement for you.

When the day of Pentecost had come, they were all together in one place, and suddenly a sound came from heaven like a rushing violent wind, and it filled the whole house where they were sitting. There appeared to them tongues resembling fire, which were being distributed [among them], and they rested on each one of them [as each person received the Holy Spirit]. read more.
And they were all filled [that is, diffused throughout their being] with the Holy Spirit and began to speak in other tongues (different languages), as the Spirit was giving them the ability to speak out [clearly and appropriately].