Exodus 24:12-14

"And Jehovah said unto Moses, Come up to me into the mount, and be there: and I will give thee the tables of stone, and the law and the commandments, which I have written, that thou mayest teach them. And Moses rose up and Joshua his minister: and Moses went up into the mountain of God. And he said unto the elders, Tarry ye here for us, until we come again unto you: and, behold, Aaron and Hur are with you; whosoever hath a cause, let him come near unto them."

"Unto Moses ... come up ... into the mount ..." Moses, who without any doubt participated in that marvelous meal and the theophany, along with the seventy, etc., was not "up into the mount" when that event occurred, as indicated by this commandment.

"With Joshua his minister ..." Since Joshua did not receive that name till long afterward when Moses changed it from "Oshea," we are left with the conclusion that Moses revised these words at the time of his putting all of his writings together, near the time of the Exodus, and for greater clarity placed it here proleptically. It is not indicated that even Joshua went to the summit. Perhaps he waited for Moses at some appointed place until-the forty days were concluded. See Exodus 32:17.

Aaron and Hur (Exodus 24:14) were charged as Moses' deputies to take charge of the affairs of the nation during the time when Moses waited upon God in the mountain. The disaster that ensued will be revealed later.