Since these two are one, that which belongs to one must be the property of the other also; there can be no division between them. In Isaiah 58:13 (If you turn away your foot from the Sabbath, From doing your pleasure on My holy day, And call the Sabbath a delight, The holy day of the LORD honorable, And shall honor Him, not doing your own ways, Nor finding your own pleasure, Nor speaking your own words) we learn that the Lord’s day is holy, and that it is the Sabbath; and this at once caused us to turn to the fourth commandment, where we found that the seventh day is declared to be the Sabbath.
Since the seventh day is the Sabbath of the Lord,
and the Sabbath is the Lord’s holy day,
it necessarily follows that the seventh day is the Lord’s day."
E.J. Waggoner
