Deuteronomy 12:4

4Ye shall not do so unto the Lord your God. The principal distinction, as far as regards the external exercises of devotion, is here laid down between the legitimate worship of God, and all the fictitious rites which the Gentiles have invented; viz., that God would have but one sanctuary and one altar, which might be a symbol of the difference between Himself and all idols; and thus that true religion should have no affinity to superstitions. To this refers the prohibition, that the Israelites should not conduct themselves towards God as the Gentiles did towards their idols; but that a barrier should be raised, which would separate (103) them from the whole world. The whole external profession of God’s worship is fitly annexed to the Second Commandment, because upon that it depends, and has no other object than its due observation. But when I begin to speak of the tabernacle, the priesthood, and the sacrifices, I am entering on a deep and vast ocean, in which many interpreters, whilst indulging their curiosity, have pursued a wild and wandering course. Admonished, therefore, by their example, I will take in my sails, and only touch upon a few points which tend to edification in the faith. But my readers must now be requested, not only to pardon me for abstaining from subtle speculations, but also themselves willingly to keep within the bounds of simplicity. Many have itching ears; and in our natural vanity, most men are more delighted by foolish allegories, than by solid erudition. But let those who shall desire to profit in God’s school, learn to restrain this perverse desire of knowing more than is good for them, although it may tickle their minds. Now let us consider the words of Moses.