Exodus 19:11

11 and be ready by the day after tomorrow. On that day I, the Lord, will come down on Mount Sinai, and all the people will see me.

Exodus 19:11 Meaning and Commentary

Exodus 19:11

And be ready against the third day
Not the third day of the month, but the third day from hence, this being the fourth, and the morrow the fifth, and the third day, the day following that, the sixth, on which day it is generally agreed by the Jews that the law was given, (See Gill on Exodus 19:16)

for the third day the Lord will come down in the sight of all the
people upon Mount Sinai;
which must be understood, consistent with his omnipresence, and is only expressive of some visible display of his power, and of some sensible token of his presence to the people; he was now upon it in the pillar of cloud, but then he would appear in another manner, and descend in a thick cloud and fire, which all the people would see, though they could not see the similitude of anything in it.

Exodus 19:11 In-Context

9 And the Lord said to Moses, "I will come to you in a thick cloud and speak to you. The people will hear me speaking with you and will always trust you." Then Moses told the Lord what the people had said.

10 The Lord said to Moses, "Go to the people and have them spend today and tomorrow preparing themselves. They must wash their clothes

11 and be ready by the day after tomorrow. On that day I, the Lord, will come down on Mount Sinai, and all the people will see me.

12 But you must set a limit around the mountain that the people are not to cross. Tell them not to go up on the mountain and not to touch the foot of it. Anyone who touches the mountain must be put to death

13 with stones or shot with arrows. No one is allowed to touch him. Whether it is a person or an animal, he will not live. But the trumpet will make a long blast, and only then may the people go up on the mountain."