Analysis of A Rear Elevation

Once Moses (in Scripture the story is told)
Entreated the favor God's face to behold.
Compassion divine the petition denied
Lest vision be blasted and body be fried.
Yet this much, the Record informs us, took place:
Jehovah, concealing His terrible face,
Protruded His rear from behind a great rock,
And edification ensued without shock.
So godlike Salvini, lest worshipers die,
Averting the blaze of his withering eye,
Tempers his terrors and shows to the pack
Of feeble adorers the broad of his back.
The fires of their altars, which, paled and declined
Before him, burn all the more brightly behind.
O happy adorers, to care not at all
Where fawning may tickle or lip-service fall!