Regarding the Passover in the wilderness, difficulties have been raised on the ground that a sufficient number of lambs, males of the first year, could scarcely have been provided, and that the sacrificing of the lambs by Aaron and his two sons within the prescribed time would have been impossible. The second point of difficulty disappears if this Passover was, as we have seen reason to believe, a family festival like that observed on the occasion of the exodus. Again, the number of yearling male lambs required would depend on the number who partook of the feast. Calculations made on the basis that one lamb sufficed for about fifteen, and that men alone ate the Passover, leave the matter in apparent doubt. Some fifty thousand lambs would still be needed. Keeping by the enumeration of the Israelites given in the muster-roll of Numbers, some writers explain that the desert tribes might supply large numbers of lambs, and that kids also were available. The difficulty, however, remains, and it is one of those which point to the conclusion that the numbers given have somehow been increased in the transcription of the ancient records century after century.
The case of certain men who could not partake of the Passover in the first month, because they were unclean through the dead, was brought before Moses and Aaron. The men felt it to be a great loss of privilege, especially as the march was about to begin, and they might not have another opportunity of observing the feast. Who indeed could tell whether in the first conflict it might not be his lot to fall by the sword? "We are unclean by the _nephesh_ of a man," they said: "wherefore are we kept back, that we may not offer the oblation of the Lord in its appointed season among the children of Israel?" The result of the appeal was the new law providing that two disabilities, and two only, should be acknowledged. The supplementary Passover of the second month was appointed for those unclean by the dead, and those on a journey who found themselves too far off to reach in time the precincts of the sanctuary. Those unclean would be in a month presumably free from defilement; those on a journey would probably have returned. The concession is a note of the gracious reasonableness that in many ways distinguished the Hebrew religion; and the Passover observances of Jews at the present day are based on the conviction that what is practicable is accepted by God, though statute and form cannot be kept.