And Moses went up unto God, and the LORD called unto him out of the mountain, saying, Thus shalt thou say to the house of Jacob, and tell the children of Israel; Moses went up unto God - It is likely that the cloud which had conducted the Israelitish camp had now removed to the top of Sinai; and as this was the symbol of the Divine presence, Moses went up to the place, there to meet the Lord.
The Lord called unto him - This, according to St. Stephen, was the Angel of the Lord, Acts 7:38. And from several scriptures we have seen that the Lord Jesus was the person intended; see Clarke's note on Genesis 16:7; see Clarke's note on Genesis 18:13; see Clarke's note on Exodus 3:2.