Exodus 19:8-18

8 And all the people answered with one accord, and said, All things that God has spoken, we will do and hearken to: and Moses reported these words to God.
9 And the Lord said to Moses, Lo! I come to thee in a pillar of a cloud, that the people may hear me speaking to thee, and may believe thee for ever: and Moses reported the words of the people to the Lord.
10 And the Lord said to Moses, Go down and solemnly charge the people, and sanctify them to-day and to-morrow, and let them wash their garments.
11 And let them be ready against the third day, for on the third day the Lord will descend upon mount Sina before all the people.
12 And thou shalt separate the people round about, saying, Take heed to yourselves that ye go not up into the mountain, nor touch any part of it: every one that touches the mountain shall surely die.
13 A hand shall not touch it, for shall be stoned with stones or shot through with a dart, whether beast or whether man, it shall not live: when the voices and trumpets and cloud depart from off the mountain, they shall come up on the mountain.
14 And Moses went down from the mountain to the people, and sanctified them, and they washed their clothes.
15 And he said to the people, Be ready: for three days come not near to a woman.
16 And it came to pass on the third day, as the morning drew nigh, there were voices and lightnings and a dark cloud on mount Sina: the voice of the trumpet sounded loud, and all the people in the camp trembled.
17 And Moses led the people forth out of the camp to meet God, and they stood by under the camp.
18 The mount of Sina was altogether on a smoke, because God had descended upon it in fire; and the smoke went up as the smoke of a furnace, and the people were exceedingly amazed.

Exodus 19:8-18 Meaning and Commentary

INTRODUCTION TO EXODUS 19

In this chapter we have an account of the coming of the children of Israel to Mount Sinai, Ex 19:1,2, of the covenant made with them there, the proposal on the part of God, and their acceptance of it, Ex 19:3-8, the previous notice God gave three days before of his appearance on the mount, the orders for their preparation to meet him, and the execution of them, Ex 19:9-15, the awful and tremendous appearance of God upon the mount, Ex 19:6-20 and the strict charge given, that neither people nor priests should come near and gaze, only Moses and Aaron with him were to come up, bounds being set to prevent the rest, Ex 19:21-24, and the chapter is closed with observing, that Moses went down from the mount, and delivered to the people what the Lord spoke to and by him, Ex 19:25.

The Brenton translation of the Septuagint is in the public domain.