Matthew 24 only has one mention of the Sabbath “ 20 Pray that your flight will not take place in winter or on the Sabbath.”
This is about the destruction of the temple in 70 AD.
Got nothing to do with the Millerite (Seventh Day adventist like yourself, or Jehovah’s witnesses) beliefs about worshiping on Saturday or thinking that Jesus is the angel Michael.
and the earliest Christians all wrote about worshiping the Lord on the Lord’s day i.e. the FIRST day of the week
In my mother’s neck of the woods, Seventh Day Baptists were everywhere, at least during the 20th Century (maybe earlier). Most congregations are gone, but there still are a few.
Do you suppose this text is talking about the Sunday Sabbath, the 1st day of the week?
Nope.
Isaiah 66:
22For as the new heavens and the new earth, which I will make, shall remain before me, saith the LORD, so shall your seed and your name remain.
23And it shall come to pass, that from one new moon to another, and from one sabbath to another, shall all flesh come to worship before me, saith the LORD.
24And they shall go forth, and look upon the carcases of the men that have transgressed against me: for their worm shall not die, neither shall their fire be quenched; and they shall be an abhorring unto all flesh.
Catholic Church in Poland Discloses Hundreds of Sexual Abuse Accusations
WARSAW — Poland's Catholic Church, assailed by accusations that it for years ignored the sexual abuse of minors by clergy members, on Monday acknowledged that from July 2018 through the end of last year, it had received complaints of abuse against 368 boys and girls.