Nothing wrong, unless you weren't a slave in Egypt.
Deuteronomy 5:15
Remember that you were slaves in Egypt and that the Lord your God brought you out of there with a mighty hand and an outstretched arm. Therefore the Lord your God has commanded you to observe the Sabbath day.
Isaiah 56:6-8 says gentiles are specifically singled out for Sabbath keeping.
Ex 20:8-11 comes 40 years before Deut 5 and reminds us that because God is the creator of mankind - mankind is to keep the Sabbath. A detail Christ reminds us of in Mark 2:27 "
the Sabbath made for mankind".
No wonder that for all eternity after the cross in the New Earth "
From Sabbath to Sabbath shall all mankind come before Me to worship" Isaiah 66:23
Which side of Deut.5 are we on now?
The good side.
Deut 5 is not Moses declaring war against Sinai if you read Deut 5 "details".
It starts off by telling the reader to pay attention and obey the law given at Sinai.
Deut 5
2 The Lord our God made a covenant with us at Horeb. 3 The Lord did not make this covenant with our fathers, but with us,
with all those of us alive here today. 4
The Lord spoke to you face to face at the mountain from the midst of the fire,
instead of arguing against God - in Deut 5 - Moses is for God.
22 “These words the
Lord spoke to all your assembly at the mountain from the midst of the fire,
of the cloud and
of the thick gloom, with a great voice, and
He added no more. He wrote them on two tablets of stone and gave them to me.
Moses is not rechiselling stone in Deut 5 -- he rather says that it is what was actually on stone that is not changed. In fact the Ten are kept inside the ark and Deut - outside the ark.
Were we simply "not supposed to notice"??
Are you observing the new moon? (Isaiah 66:23)
Is it one of the TEN?
Are you observing the Sabbath?
Does Christ say "the new moon was made for mankind" Mark 2:27 or
"the Sabbath was made for mankind" Mark 2:27.
There is a New Earth future as in Isaiah 66:23 where the New Moon observance is also placed along side the Sabbath - which is not an argument for denying today the Sabbath "made for mankind".
You are misreading Isaiah 56.
Gentiles are not allowed in the Temple.
In the temple there was a court called "the court of the gentiles" -- details matter.
I will give them an everlasting name which will not be cut off.
6 “
Also the foreigners who join themselves to the Lord,
To minister to Him, and to love the name of the Lord,
T
o be His servants, every one who keeps from profaning the Sabbath
And holds fast My covenant;
7 Even those I will bring to My holy mountain
And make them joyful in
My house of prayer.
Their burnt offerings and their sacrifices will be acceptable on My altar;
For
My house will be called a house of prayer for all nations.”
8 The Lord God, who gathers the dispersed of Israel, declares,
“
Yet others I will gather to them, to those
already gathered.”
yep -- that is after Deut 5.