Exodus 19:10 And the Lord said unto Moses, Go unto the people, and sanctify them to day and to morrow, and let them wash their clothes, 11 And be ready against the third day: for the third day the Lord will come down in the sight of all the people upon mount Sinai.
[Patriarchs & Prophets pp 303>304] Again their leader ascended the mountain, and the Lord said unto him, “Lo, I come unto thee in a thick cloud, that the people may hear when I speak with thee, and believe thee forever.” When they met with difficulties in the way, they were disposed to murmur against Moses and Aaron, and accuse them of leading the hosts of Israel from Egypt to destroy them. The Lord would honor Moses before them, that they might be led to confide in his instructions.
God purposed to make the occasion of speaking His law a scene of awful grandeur, in keeping with its exalted character. The people were to be impressed that everything connected with the service of God must be regarded with the greatest reverence. The Lord said to Moses, “Go unto the people, and sanctify them today and tomorrow, and let them wash their clothes, and be ready against the third day: for the third day the Lord will come down in the sight of all the people upon Mount Sinai.” During these intervening days all were to occupy the time in solemn preparation to appear before God.
Their person and their clothing must be freed from impurity. And as Moses should point out their sins, they were to devote themselves to humiliation, fasting, and prayer, that their hearts might be cleansed from iniquity. The preparations were made, according to the command; and in obedience to a further injunction, Moses directed that a barrier be placed about the mount, that neither man nor beast might intrude upon the sacred precinct. If any ventured so much as to touch it, the penalty was instant death.
Exodus 19:12 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: whosoever toucheth the mount shall be surely put to death.
May The Lord add His blessing to the study of His word. God bless!