And the priests also, who come near to God, should sanctify themselves. It has been asked who these were, since the Levitical institutions were still non-existent (ver. 22, cf. 24). But it is certain that the heads of houses exercised priestly functions; and it is not impossible that the elders of Israel who came to eat before God with Jethro (xviii. 12) had begun to perform religious functions for the people. Is it supposed that the nation had gone without religious services for three months?
It has been remarked by many that the law of Moses appealed for acceptance to popular and even democratic sanctions. The covenant was ratified by a plébiscite. The tremendous evidence was offered equally to all. For, said St. Augustine, "as it was fit that the law which was given, not to one man or a few enlightened people, but to the whole of a populous nation, should be accompanied by awe-inspiring signs, great marvels were wrought ... before the people" (_De Civ. Dei_, x. 13).
We have also to observe the contrast between the appearance of God on Sinai and His manifestation in Jesus. And this also was strongly wrought out by an ancient father, who represented the Virgin Mary, in the act of giving Jesus into the hands of Simeon, as saying, "The blast of the trumpet does not now terrify those who approach, nor a second time does the mountain, all on fire, cause terror to those who come nigh, nor does the law punish relentlessly those who would boldly touch. What is present here speaks of love to man; what is apparent, of the Divine compassion." (Methodius _De Sym. et Anna_, vii.)
But we must remember that the Epistle to the Hebrews regards the second manifestation as the more solemn of the two, for this very reason: that we have not come to a burning mountain, or to mortal penalties for carnal irreverence, but to the spiritual mountain Zion, to countless angels, to God the Judge, to the spirits of just men made perfect, and to Jesus Christ. If they escaped not, when they refused Him Who warned on earth, much more we, who turn away from Him Who warneth from heaven (Heb. xii. 18-25).
There is a question, lying far behind all these, which demands attention.
It is said that legends of wonderful appearances of the gods are common to all religions; that there is no reason for giving credit to this one and rejecting all the rest; and, more than this, that God absolutely could not reveal Himself by sensuous appearances, being Himself a Spirit. In what sense and to what extent God can be said to have really revealed Himself, we shall examine hereafter. At present it is enough to ask whether human love and hatred, joy and sorrow, homage and scorn can manifest themselves by looks and tones, by the open palm and the clenched fist, by laughter and tears, by a bent neck and by a curled lip. For if what is most immaterial in our own soul can find sensuous expression, it is somewhat bold to deny that a majesty and power beyond anything human may at least be conceived as finding utterance, through a mountain burning to the summit and reeling to the base, and the blast of a trumpet which the people could not hear and live.
But when it is argued that wondrous theophanies are common to all faiths, two replies present themselves. If all the races of mankind agree in believing that there is a God, and that He manifests Himself wonderfully, does that really prove that there is no God, or even that He never manifested Himself wondrously? We should certainly be derided if we insisted that such a universal belief proved the truth of the story of Mount Sinai, and perhaps we should deserve our fate. But it is more absurd by far to pretend that this instinct, this intuition, this universal expectation that God would some day, somewhere, rend the veil which hides Him, does actually refute the narrative.