Leviticus 23:14-16

Modern English Version

¹⁴ You shall eat neither bread nor grain, parched or fresh, until the same day that you have brought an offering to your God. It shall be a perpetual statute throughout your generations in all your dwellings.

The Feast of Weeks^(A)

¹⁵ You shall count seven full weeks from the next day after the Sabbath, from the day that you brought the sheaf bundle of the wave offering. ¹⁶ You shall count fifty days to the day after the seventh Sabbath; then you shall offer a new grain offering to the Lord.