To this appeal the nation responded gladly. They could feel that indeed they had been sustained by God as the eagle bears her young--not grasping them in her claws, like other birds, but as if enthroned between her wings, and sheltered by her body, which interposed between the young and any arrow of the hunter. Thus, say the Rabbinical interpreters, did the pillar of cloud intervene between Israel and the Egyptians. If the image were to be pressed so far, we could now find a much closer analogy for the eagle "preferring itself to be pierced rather than to witness the death of its young" (Kalisch). But far more tender, and very touching in its domestic homeliness, is the metaphor of Him Whose discourses teem with allusions to the Old Testament, yet Who preferred to compare Himself to a hen gathering her chickens under her wing.
With the adhesion of Israel to the covenant, Moses returned to God. And the Lord said, "Lo, I come unto thee in a thick cloud, that the people may hear when I speak with thee, and may also believe thee for ever."
The design was to deepen their reverence for the Lawgiver Whose law they should now receive; to express by lessons, not more dreadful than the plagues of Egypt, but more vivid and sublime, the tremendous grandeur of Him Who was making a covenant with them, Who had borne them on His wings and called them His firstborn Son, Whom therefore they might be tempted to approach with undue familiarity, were it not for the mountain that burned up to heaven, the voice of the trumpet waxing louder and louder, and the Appearance so fearful that Moses said, "I exceedingly fear and quake" (=to phantazomenon=--Heb. xii. 21).
When thus the Deity became terrible, the envoy would be honoured also.
But it is important to observe that these terrible manifestations were to cease. Like the impressions produced by sickness, by sudden deaths, by our own imminent danger, the emotion would subside, but the conviction should remain: they should believe Moses for ever. Emotions are like the swellings of the Nile: they subside again; but they ought to leave a fertilising deposit behind.
That the impression might not be altogether passive, and therefore ephemeral, the people were bidden to "sanctify themselves"; all that is common and secular must be suspended for awhile; and it is worth notice that, as when the family of Jacob put away their strange gods, so now the Israelites must wash their clothes (cf. Gen. xxxv. 2). For one's vestment is a kind of outer self, and has been with the man in the old occupations from which he desires to purify himself. It was therefore that when Jehu was made king, and when Jesus entered Jerusalem in triumph, men put their garments under their chief to express their own subjection (2 Kings ix. 13; Matt. xxi. 7). Much of the philosophy of Carlyle is latent in these ancient laws and usages.
Moreover, the mountain was to be fenced from the risk of profanation by any sudden impulsive movement of the crowd, and even a beast that touched it should be slain by such weapons as men could hurl without themselves pursuing it. Only when the trumpet blew a long summons might the appointed ones come up to the mount (ver. 13).
On the third day, after a soul-searching interval, there were thunders and lightnings, and a cloud, and the trumpet blast; and while all the people trembled, Moses led them forth to meet with God. Again the narrative reverts to the terrible phenomena--the fire like the smoke of a furnace (called by an Egyptian name which only occurs in the Pentateuch), and the whole mountain quaking. Then, since his commission was now to be established, Moses spake, and the Lord answered him with a voice. And when he again climbed the mountain, it became necessary to send him back with yet another warning, whether his example was in danger of emboldening others to exercise their newly given priesthood, or the very excess of terror exercised its well-known fascinating power, as men in a burning ship have been seen to leap into the flames.