Verse 15. - Moses went up into the mount. Having made the necessary arrangements for the government of the people during his absence, Moses ascended, in company with Joshua, to the upper part of the mountain, and there waited for some further summons. A cloud, or, rather, the cloud previously mentioned (Exodus 19:16), stood gathered upon the highest eminence, and marked the special presence of God there. Moses, though called up into the mount, would not intrude into this inner sanctuary, until specially bidden to enter it.
24:12-18 A cloud covered the mount six days; a token of God's special presence there. Moses was sure that he who called him up would protect him. Even those glorious attributes of God which are most terrible to the wicked, the saints with humble reverence rejoice in. And through faith in the atoning Sacrifice, we hope for greater honour than Moses ever enjoyed on earth. Now we see through a glass darkly, but when he shall appear, then face to face. This vision of God will continue with equal, if not increasing brightness of joy; not for a few days only, but through eternity.
and a cloud covered the mount; in which cloud Jehovah was.