Poppycock!
Have you never heard of the "Count of the Omer"? [Leviticus 23:15-16]And 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: Even unto the morrow after the seventh sabbath shall ye number fifty days; and ye shall offer a new meat offering unto the LORD.
Seven sabbaths were to be counted from the Feast of First-fruits or Passover. Consequently, these came to be known as "First Sabbath," "Second Sabbath" etc., down to the seventh. And according to Julian Morgenstern, former President of Hebrew University, this practice continued in Galilee till the time of Christ or the Common Era. It is still observed by some groups in Palestine today. Thus, there was an annual date known as "First Sabbath," just after Passover. [page 230, The Life of Christ in Stereo]
***Have you never heard of the “Count of the Omer”?***
Of course I’ve heard of it and discussed it many times here on FR. The Feast of the First fruits was on the day AFTER the weekly Sabbath, or SUNDAY. counted seven days till the next, until you reach Pentecost which is also on SUNDAY, the day the Apostles gathered together and the Holy Spirit was poured out on them.