But the most striking illustration of the meaning of this word may be found in the record of the sanctification of Mount Sinai.[20] When God was about to speak the ten commandments in the hearing of all Israel, he sent Moses down from the top of Mount Sinai to restrain the people from touching the mount. “And Moses said unto the Lord, The people cannot come up to Mount Sinai; for thou chargedst us, saying, Set bounds about the mount, and _sanctify it_.” Turning back to the verse where God gave this charge to Moses, we read: “And thou shalt set bounds unto the people round about, _saying_, Take heed to yourselves, that ye go not up into the mount or touch the border of it.” Hence to sanctify the mount was to command the people not to touch even the border of it; for God was about to descend in majesty upon it. In other words, to sanctify or set apart to a holy use Mount Sinai, was to tell the people that God would have them treat the mountain as sacred to himself. And thus also to sanctify the rest-day of the Lord was to tell Adam that he should treat the day as holy to the Lord. The declaration, “God blessed the seventh day, and sanctified it,” is not indeed a commandment for the observance of that day; but it is the record that such a precept was given to Adam.[21] For how could the Creator “set apart to a holy use” the day of his rest, when those who were to use the day knew nothing of his will in the case? Let those answer who are able. This view of the record in Genesis we shall find to be sustained by all the testimony in the Bible relative to the rest-day of the Lord. The facts which we have examined are the basis of the fourth commandment. Thus spake the great Law-giver from the summit of the flaming mount: “Remember the Sabbath day, to keep it holy.” “The seventh day is the Sabbath of the Lord thy God.” “For in six days the Lord made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the Lord blessed the Sabbath day, and hallowed it.”[22]