The Advent Truth.
The Protestant Reformation was built on the principle of Sola Scriptura — Scripture alone. The Reformers protested teachings they believed could not be supported from the Bible. But there’s an uncomfortable question many modern Protestants avoid:

If we reject Rome’s authority in doctrine… why accept Rome’s authority on Sunday sacredness?

Even Catholic sources openly acknowledge that the Bible never explicitly changed the Sabbath from the seventh day to the first day of the week.

Here’s one famous admission:

... you may read the Bible from Genesis to Revelation, and you will not find a single line authorizing the sanctification of Sunday. The Scriptures enforce the religious observance of Saturday, a day which we never sanctify. —The Faith of Our Fathers, by James Cardinal Gibbons, Archbishop of Baltimore, 88th edition, page 89. Originally published in 1876, republished and Copyright 1980 by TAN Books and Publishers, Inc., pages 72-73.

That doesn’t mean Catholics are being dishonest. In fact, many are more consistent than Protestants on this point. Rome openly appeals to church authority and tradition. The real inconsistency appears when people claim “the Bible alone” while defending a practice they cannot actually establish from Scripture.

Jesus said:
“If ye love me, keep my commandments.” — John 14:15

And the fourth commandment still says:
“Remember the sabbath day, to keep it holy.” — Exodus 20:8

Not one verse says:

* the Sabbath was changed,
* Sunday replaced it,
* or the seventh day lost its sanctity.

Yes, Jesus rose on Sunday. But nowhere does Scripture call Sunday the new Sabbath or command Christians to keep it holy.

The issue is bigger than a day. It’s about authority.

Will we follow:
the commandments of God,
or
the traditions of men?

The Reformers protested many things Rome taught. But on the issue of Sunday sacredness, most Protestantism still carries Rome’s tradition while claiming to reject Rome’s authority.

That’s something worth thinking about.