Deuteronomy Chapter 16

Deuteronomy 16
 
9-12. The day of Pentecost was evidently thus—whatever day the first handful could be had, it was offered on the day after the Sabbath (Sunday); thence to the seventh Sabbath was forty-nine, and then on the fiftieth (Sunday) Pentecost was celebrated. In itself it had no connection with the previous feast of unleavened bread—historically it was so, but they were distinct ordinances. See also Lev. 23:15, 1615And ye shall count unto you from the morrow after the sabbath, from the day that ye brought the sheaf of the wave offering; seven sabbaths shall be complete: 16Even unto the morrow after the seventh sabbath shall ye number fifty days; and ye shall offer a new meat offering unto the Lord. (Leviticus 23:15‑16).