Exodus 24:12-18

12 And the Lord said to Moses, Come up to me into the mountain, and be there; and I will give thee the tables of stone, the law and the commandments, which I have written to give them laws.
13 And Moses rose up and Joshua his attendant, and they went up into the mount of God.
14 And to the elders they said, Rest there till we return to you; and behold, Aaron and Or are with you: if any man have a cause to be tried, let them go to them.
15 And Moses and Joshua went up to the mountain, and the cloud covered the mountain.
16 And the glory of God came down upon the mount Sina, and the cloud covered it six days; and the Lord called Moses on the seventh day out of the midst of the cloud.
17 And the appearance of the glory of the Lord was as burning fire on the top of the mountain, before the children of Israel.
18 And Moses went into the midst of the cloud, and went up to the mountain, and was there in the mountain forty days and forty nights.

Exodus 24:12-18 Meaning and Commentary

INTRODUCTION TO EXODUS 24

In this chapter we have an account that Moses was ordered to come up to the Lord alone, Ex 24:1,2, but that before he did go up, he related to the people all the above laws delivered to him, which they promised obedience to, and so a covenant was made between God and the people by sacrifice, and by the sprinkling of blood, Ex 24:3-8, upon which he and Aaron, and his two sons and seventy elders of Israel, went up part of the mountain, and had a vision of God, Ex 24:9-11, when Moses with Joshua was called, and went up higher, until at length he entered into the cloud where the Lord was, and continued forty days and forty nights, Ex 24:12-18.

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