When you count from Sabbath to Sabbath, there are eight days. One New Moon to another, and one Sabbath to another. In Isa. 66:23 from New moon, Sabbaths are eight days apart. This proves wise old Solomon kept the 8th, 15th, 22nd, and 29th of the moon as Sabbaths and never counted the New moon as one of the six workdays.

If the eighth day were not a Sabbath counted from last Sabbaths, then a leper or someone under a Nazerite vow would have had to wash his clothes and shave his body on a weekly Sabbath. Cleansing took place from Sabbath to Sabbath. Remember, the Sabbath that ends a week also begins a new week on a eight-day count, you would have a Sabbath then work six days and rest on the seventh day which will always be on the eighth from the last intermission day or Sabbath for worship.

Sabbaths are recorded from Sabbath to Sabbath in the Scriptures. The gates were to be shut the six working days and open on Sabbaths and Day of the New moon. (Ez. 46:1 and Isa. 66:23). The day of rebuilding can be a two-day feast, every other moon. (I Sam. 20:27) You have your New moon day and then gates are shut the six working days. Then you rest on the seventh day, which is the eighth day from the New moon. Then you work six more days (9th through the 14th) and rest on the seventh, which is the 8th day again, the 15th. Then eight days from the 15th which is the 22nd Sabbath, and so on.

Lev. 14:2-10 is the law of the leper. In the day of his cleansing, he shall be brought unto the priest (on the Sabbath). It goes on to tell how he is to shave his head and beard and wash his clothes on the seventh day and on the eighth day (Sabbath) offer sacrifice. The point being that if the count began on any other day except intermission, the leper would sometimes have to do his laundry on a Sabbath.
The reason this seventh day is not a Sabbath is because it is not the eighth day from showing himself to the Priest on the Sabbath, and is not the seventh day after six workdays, therefore this seventh day was actually the sixth workday that he washed clothes.

The eighth day is many times synonymous with the Sabbath day. He said unto them that you circumcise a man on the Sabbath day so that the Law of Moses be fulfilled. Well the law says to circumcise on the eighth day. What better day to enter this covenant than on the Sabbath day? (Gen.17:13) The Sabbath and eighth day is sometimes synonymous.

I believe Abraham was circumcised on the eighth day. Anyhow, the examples I just gave, puts the Sabbaths on the 8th, 15th, 22nd, and 29th of the moon which makes the 2nd day of the moon always the 1st workday, and proves the New moon is not, and was not, counted as one of the six work days as the Roman calendar does when it ignores the moon in its calculations.

I have pinpointed weekly Sabbaths by the moon on the 8th, 15th, 22nd, and 29th, and I have shown where they were keeping the Sabbaths this way before the law, (Exodus chapter 16) , the time of the law, (II Chron.7:9) before the crucifixion (John 9:14), during crucifixion (Luke 23:56) and after crucifixion (Acts 20:6,7) even up to the Historian Josephus. We are keeping them that way now, and I showed where we will be keeping them that way in the future. Isa. 66:23 Feel free to write and show me otherwise, remember, we are to prove all things. People have major problems if there is no Scriptual examples to support what they believe should be done, and multitudes doing the opposite.