Deuteronomy 16:9
"You shall count [off] seven weeks for you; {from the time you begin to harvest the standing grain} you shall begin to count seven weeks.
Exodus 23:16
And [you will keep] the Feast of Harvest, [with] the firstfruits of your work, what you sow in the field. And [you will keep] the Feast of Harvest Gathering when the year goes out, when you gather your work from the field.
Exodus 34:22
And {you yourself} will observe the Feast of Weeks--the firstfruits of the wheat harvest--and the Feast of Harvest Gathering at the turn of the year.
Acts 2:1
And when the day of Pentecost had come, they were all together in the same [place].
Leviticus 23:15-16
" 'And you shall count for yourselves {from the day after} the Sabbath, from the day of your bringing the wave offering's sheaf--[there] shall be seven full weeks.
Numbers 28:26-30
" 'And on the day of firstfruits, when you are presenting a new offering for Yahweh during your Festival of Weeks, you will have a holy convocation; {you will not do any regular work}.
Deuteronomy 16:10
And [then] you shall celebrate the Feast of Weeks for Yahweh your God with the measure of the freewill offering of your hand that you shall give [just] as Yahweh your God has blessed you.
Deuteronomy 16:16
Three times in the year all [of] your males shall appear {before } Yahweh your God at the place that he will choose, at the Feast of Unleavened Bread and at the Feast of Weeks and at the Feast of Booths, and they shall not appear {before Yahweh} empty-handed.
2 Chronicles 8:13
{as was the daily requirement}, to offer up according to the commandments of Moses for Sabbaths, new moon festivals, and the three {annual} feasts: the Feast of Unleavened Bread, the Feast of Weeks, and the Feast of Booths.
1 Corinthians 16:8
But I will remain in Ephesus until Pentecost,
Hebrews 2:1
Because of this, [it is] all the more necessary [that] we pay attention to the [things] we have heard, lest we drift away.