Jethro and Constitutional Interpretation.

Jethro's sentence describes the first differential for the census integral, the second differential of which is Joshua's command, issued after the Battle of Jericho and just prior to the Battle of Ai. Adams' proscription against Aliens is enforced according to the calculus of this temporal interval. The census ratio is of named citizens to loyal citizens. It is fallacious to assume that the Shibboleth pronouncement in accordance with Joshua's orders is decided on the basis of astronomical time (it is not a matter of whether the citizen venerates the Jewish Sabbath or the Catholic Sabbath). The Shibboleth test in Joshua was conducted with a view towards the Hebrew's reverence of the fourth commandment, which had been given earlier in the narrative at Mount Siani.

The two census points for differentiation on the integral curve therefore are the fact of an Israelite name, and the Sabbath question. The time between Jethro's statement and Joshua's form the first interval.