That is false.
The seventh day of the seven day week does not fall on the 8th day of every single month.
The weeks are calculated separately from the months, which is why the children of Israel were told to work six days and remember the seventh day.
genuineoriginal please read where it describes day 22 is called a Sabbath in month 2 after leaving Egypt for you self:
Exodus 16
Manna and Quail
1The whole Israelite community set out from Elim and came to the Desert of Sin, which is between Elim and Sinai,
on the fifteenth day of the second month after they had come out of Egypt. 2In the desert the whole community grumbled against Moses and Aaron. 3The Israelites said to them, “If only we had died by the Lord’s hand in Egypt! There we sat around pots of meat and ate all the food we wanted, but you have brought us out into this desert to starve this entire assembly to death.”
4Then the Lord said to Moses, “I will rain down bread from heaven for you. The people are to go out each day and gather enough for that day. In this way I will test them and see whether they will follow my instructions. 5On the sixth day they are to prepare what they bring in, and that is to be twice as much as they gather on the other days.”
6So Moses and Aaron said to all the Israelites, “In the evening you will know that it was the Lord who brought you out of Egypt, 7and in the morning you will see the glory of the Lord, because he has heard your grumbling against him. Who are we, that you should grumble against us?” 8Moses also said,
“You will know that it was the Lord when he gives you meat to eat in the evening and all the bread you want in the morning, because he has heard your grumbling against him. Who are we? You are not grumbling against us, but against the Lord.”
9Then Moses told Aaron, “Say to the entire Israelite community, ‘Come before the Lord, for he has heard your grumbling.’ ”
10While Aaron was speaking to the whole Israelite community, they looked toward the desert, and there was the glory of the Lord appearing in the cloud.
11The Lord said to Moses, 12“I have heard the grumbling of the Israelites. Tell them, ‘At twilight you will eat meat, and in the morning you will be filled with bread. Then you will know that I am the Lord your God.’ ”
13That evening quail came and covered the camp, and
in the morning there was a layer of dew around the camp. 14When the dew was gone, thin flakes like frost on the ground appeared on the desert floor. 15When the Israelites saw it, they said to each other, “What is it?” For they did not know what it was.
Moses said to them, “It is the bread the Lord has given you to eat. 16This is what the Lord has commanded: ‘Everyone is to gather as much as they need. Take an omera for each person you have in your tent.’ ”
17The Israelites did as they were told; some gathered much, some little. 18And when they measured it by the omer, the one who gathered much did not have too much, and the one who gathered little did not have too little. Everyone had gathered just as much as they needed.
19Then Moses said to them, “No one is to keep any of it until morning.”
20However, some of them paid no attention to Moses; they kept part of it until morning, but it was full of maggots and began to smell. So Moses was angry with them.
21
Each morning everyone gathered as much as they needed, and when the sun grew hot, it melted away. 22
On the sixth day, they gathered twice as much—two omers for each person—and the leaders of the community came and reported this to Moses. 23He said to them, “This is what the Lord commanded: ‘
Tomorrow is to be a day of sabbath rest, a holy sabbath to the Lord. So bake what you want to bake and boil what you want to boil. Save whatever is left and keep it until morning.’ ”
24So they saved it until morning, as Moses commanded, and it did not stink or get maggots in it. 25“Eat it today,” Moses said, “because
today is a sabbath to the Lord. You will not find any of it on the ground today. 26
Six days you are to gather it, but on the seventh day, the Sabbath, there will not be any.”
Day 22 in month 2 was a Sabbath and day 22 in month 1 was a Sabbath, which can only be achived if Sabbaths were calculated from new moon day.
There are 5 other places in the Bible like this, that describe Sabbaths being on days 8, 15, 22 & 29. This video will help show you where:
