Eadie's Biblical
Cyclopedia
(1872 Edition,
page 561)

"Sunday was a
name given by the
heathens to the first
day of the week,
because it was the
day on which they
worshipped the sun,
...the seventh day
was blessed and
hallowed by God
Himself, and ... He
requires His
creatures to keep
it holy to Him.

This commandment
is of universal and
perpetual obligation...
The Creator 'blessed
the seventh day'-
declared it to be a
day above all days, a
day- on which His
favour should
assuredly rest. ...So
long, then, as man
exists, and the
world around him
endures,' does the
law of the early
Sabbath remain. It
cannot be set aside
so long as its
foundations last....

It is not the Jewish
Sabbath, properly so-
called, which is
ordained in the
fourth commandment.
In the whole of that
injunction there is no
Jewish element, any
more than there is in
the third commandment,
or the sixth."