-- so then "yes" there are obvious points of agreement on "both sides" but in addition there are the "irrefutable details" that hold up - no matter which side one is on regarding this topic.
-- let's just look at basic irrefutable Bible facts about God's Sabbath.
1. Jer 31:31-33 the NEW covenant says "I will write My LAW on their heart and mind". Exegesis demands that we admit that the author (Jeremiah in this case) and his primary audience knew that the TEN Commandments were spoken by God Himself and written by God Himself -- in stone. And that the Sabbath is one of them.
This is irrefutable. (Note that in Heb 8:6-10 that New Covenant is unchanged from the Jeremiah 31 form)
2. Both the "
Baptist Confession of Faith" (section 19) and the "
Westminster Confession of Faith" (section 19) affirm that ALL TEN of the Ten commandments are included in the moral law of God "written on the heart" under the NEW Covenant.
This is irrefutable. They do say that.
3. God says the Sabbath was "
made for MANKIND" Mark 2:27 and that "
All mankind" is to come before God for worship "From Sabbath to Sabbath" Isaiah 66:23 and in Isaiah 56:5-8 gentiles are specifically singled out for keeping the Sabbath --
this is irrefutable. The text says it.
4. God says that the saints
"KEEP the Commandments of God AND their faith in Jesus" Rev 14:12 and Paul says "
what matters is KEEPING the Commandments of God" 1 Cor 7:19 ..
this is irrefutable.
5. God says the Sabbath is a
day of worship and holy convocation Lev 23:3, Isaiah 66:23 this too is "
irrefutable".
6. God says the Sabbath is not a day for secular activity of any kind - Isaiah 58:13-14.
This is irrefutable.
7. In the OT there were many commands and many promises. In the OT the Ten Commandments were distinguished from all of them because
a. Only the TEN were kept inside the ark
b. Only the TEN were written by God Himself on stone.
c. Only the TEN were spoken directly by God to all Israel.
e. Only in the unit of TEN do we find the commandment with a promise that starts with "Honor your father and mother" as the FIRST commandment with a promise.
And in the NT we have that SAME acceptance of the TEN where the 5th commandment
is the "first commandment with a promise" Eph 6:2
This too is irrefutable.
According to Christianity Today - in a Feb 2015 article - the Seventh-day Adventist church is the 5th largest Christian denomination on planet Earth.
Adventists: Can Ben Carson's Church Stay Separatist?
And it has world wide programs on internet, radio, TV as well as a lot of local congregations.
(I only mention this last point because you ask about the availability of seventh day Sabbath keeping groups - and the Adventist church is one of them)
in Christ,
Bob