That would seem to have been the process by which the inspired legislators of Israel did their work; and if it be so, some of the variations which are now taken to be certain indications of different ages and circumstances may simply represent local varieties of the same custom. Custom tends always to vary with the locality within certain narrow limits. It would be quite in accord with the general character of ancient customary law to believe that, provided the law was on the whole observed, there would be no inclination to insist upon excluding small local variations; and equally so that in a collection like the Pentateuch the custom of one locality should appear in one place, that of another in another. In that case, to insist that a certain sacrifice, for example, shall always consist of the same number of animals, and that any variation means a new and later legislation on the subject, is only to make a mistake. The discrepancy is made important only by applying modern English views of law to ancient law. Professor A. B. Davidson has shown in the Introduction to his _Ezekiel_ (p. liii.) that this latter was probably Ezekiel's view. "On any hypothesis of priority," he says, "the differences in details between him (_i.e._ Ezekiel) and the law (_i.e._ P) may be easiest explained by supposing that, while the sacrifices in general and the ideas which they expressed were fixed and current, the particulars, such as the kind of victims and the number of them, the precise quantity of meal, oil, and the like, were held non-essential and alterable when a change would better express the idea." The same principle would apply to the differences between Ezekiel and Deuteronomy, _e.g._ the omission of the feast of weeks and of the law of the offering of the firstlings of the flock. If so, then obviously Ezekiel must have thought that the previous ritual law was not meant to be as binding as we make it.