should observe the Sabbath, although it was a great and rigid command
among the Jews." [Note 1] "Among Christians, under the New Testament,
every day is a holy day, and _all days are free_. Therefore, says
Christ, the Son of man is Lord even of the Sabbath day. Matt. xii. 8.
Therefore Paul, at different places, admonishes the Christians, not to
suffer themselves to be bound to any particular day. Ye observe days and
months, and times and years. I am afraid of you, lest I have bestowed
upon you labor in vain. Gal. iv. 10, 11. And still more clearly in
Colossians ii. 16, 17. Let no mint therefore judge you in meat or in
drink, or in respect of an holy day, or of the new moon, or of Sabbath
days: which are a shadow of things to come." "But although the Sabbath
is _now revoked_, and the consciences of men are free from it, it is
nevertheless good and necessary that _some_ particular day of the week
be observed, in order that the word of God may be dispensed on it, may
be heard and learned; for not every one can attend to it every day.
Moreover, nature demands that both man and beast rest one day in the
week, and abstain from labor. Hence, if any one desires to make a
necessary command out of the Sabbath, as a work required of God, he must
observe Saturday and not Sunday, for Saturday was enjoined upon the
Jews, and not Sunday. But Christians have hitherto observed Sunday, and
not Saturday, because on that day Christ, arose. Now this is a certain
evidence to us that the Sabbath, yea the entire Moses (Mosaic
dispensation) no longer concerns us, else we would be under obligation
to observe Saturday. This is a great and strong proof that the Sabbath
is revoked; for throughout the whole New Testament we find no place in
which the observance of the Sabbath in enjoined upon Christians."

"But why (continues Luther,) is Sunday observed among Christians?
Although, _all days are free and one day is like another_, it is still
necessary and good, yea, very necessary, that some one day be observed,