In "real life" we have this
1. There is not one NT or OT text saying "
week day 1 is the Holy Day of the LORD" but we DO have that for Sabbath in Is 58:13. (AND we do not have ONE text in the NT or OT that says "week day 1 is the LORD's Day)
2. There is not ONE text in the NT or OT that says that "
they met EVERY week-day-1 for gospel teaching" for both Jews AND gentiles but we DO have that for Sabbath in Acts 18:4-6.
3. There is not ONE text in the NT or OT that says "
they met week-day-1 after week-day-1 " for anything - but we DO have that in Acts 13 and Acts 17 regarding Sabbath for both Jews AND Gentiles.
4. There is not ONE text in the NT or OT saying "
from week day 1 to week day 1 shall ALL MANKIND come before Me to worship" - but we DO have that in Is 66:23 for the Sabbath.
5. There is not ONE text in the NT or OT saying "
the Son of man is LORD of week day 1" but we DO have that in the NT for the Sabbath in
Mark 2:28.
6. There is not ONE text in the NT saying "
there REMAINS therefore a week-day 1 rest for the people of God" but we DO have that for Sabbath in Heb 4.
7. There is not ONE text in NT or OT saying
"remember week-day-1 to keep it holy" but we DO have that in Ex 20:8 for the Sabbath.
8. There is NOT ONE text in NT or OT saying it is ok by God if we bend/edit/break/ignore one of the TEN Commandments - but we DO have condemnation for doing such a thing in the NT -- by the Words of Christ Himself!
Mark 7:6-13
=========================And this --
The Catholic Commentary on the Baltimore Catechism post Vatican II - argues the SAME two points.
1965 -- first published 1959
(from "The Faith Explained" page 243
"we know that in the O.T it was the seventh day of the week - the Sabbath day- which was observed as the Lord's day. that was the law as God gave it...'remember to keep holy the Sabbath day.. the early Christian church determined as the Lord's day the first day of the week. That the church had the right to make such a law is evident...
The reason for changing the Lord's day from Saturday to Sunday lies in the fact that to the Christian church the first day of the week had been made double holy...
nothing is said in the bible about the change of the Lord's day from Saturday to Sunday..that is why we find so illogical the attitude of many non-Catholic who say they will believe nothing unless they can find it in the bible and yet will continue to keep Sunday as the Lord's day on the say-so of the Catholic church
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Some would argue that such catholic documents should be ignored as if they express protestant views not catholic ones.
But the flaw in logic in such desperate efforts - is more than a little transparent