Thank you for your question.
Certain Lunar Sabbath websites came up with a challenge for people to show from the Scriptures that the seventh-day Sabbath has not been recorded in the Bible to have fallen on any other date, besides 8th, 15th, 22nd, or 29th of each month.
Below is a simple illustration from the scriputres from the timing of Christ’s death that proves that the Sabbath actually fell on the 17th of the month:
“And on the fifteenth day of the same month is the feast of unleavened bread unto the LORD: seven days ye must eat unleavened bread.” – Leviticus 23:6
So what happened on the fifteenth day (first day of unleavened bread) of the month during Christ’s last year on earth? The Passover meal or the Last Supper
“And the first day of unleavened bread, when they killed the passover, his disciples said unto him, Where wilt thou that we go and prepare that thou mayest eat the passover?” – Mark 14:12
We know from scripture that following the “Last Supper” was Christ’s betrayal and Crucifixion, which we see from scripture fell on the preparation day – the day before the Sabbath or Friday:
“And now when the even was come, because it was the preparation, that is, the day before the sabbath,” – Mark 15:42
Finally, we know from scripture that Christ died and rested before the Sabbath Day:
“And they returned, and prepared spices and ointments; and rested the sabbath day according to the commandment.” – Luke 23:56
According to the Bible here, the Sabbath actually fell on the 17th of the month and not as the Lunar believers claim (8th, 15th, 22nd, or 29th).
Please brethren, do not be fooled by the private interpretations of men that promote the false Lunar Sabbath but turn to the scriptures as your sole reference. “But in vain they do worship me, teaching for doctrines the commandments of men.” Matthew 15:9
In His service,
“Beware lest any man spoil you through philosophy and vain deceit, after the tradition of men,
after the rudiments of the world, and not after Christ.” Colossians 2:8