Leviticus 23:14-16

Darby Translation

¹⁴ And ye shall not eat bread, or roast corn, or green ears, until the same day that ye have brought the offering of your God: [it is] an everlasting statute throughout your generations in all your dwellings.

¹⁵ And ye shall count from the morning after the sabbath, from the day that ye brought the sheaf of the wave-offering, seven weeks; they shall be complete;

¹⁶ even unto the morning after the seventh sabbath shall ye count fifty days; and ye shall present a new oblation to Jehovah.