Theses Sabbaticæ, or, The doctrine of the Sabbath wherein the Sabbaths I. Morality, II. Change, III. Beginning. IV. Sanctification, are clearly discussed, which were first handled more largely in sundry sermons in Cambridge in New-England in opening of the Fourth COmmandment : in unfolding whereof many scriptures are cleared, divers cases of conscience resolved, and the morall law as a rule of life to a believer, occasionally and distinctly handled / by Thomas Shepard ...

Thesis 101.

[ 101] Tis true, there are some parts of the habitable world, in Russia, and those Northern Countries, wherein for about a moneths time the Sun is never out of sight; now although they have no dark evening at this time, yet doubtlesse they know how to measure their naturall daies by the motion of the Sun; if therefore they observe that time which is equiva∣lent to our dark evenings, and sanctifie to God the space of a day, as tis measured by the circling Sun round about them, they may then be said to sanctifie the Sabbath from even to even, if they do that which is equivalent thereunto; they that know the East, West, South, North points, do certainly know

when that which is equivalent to evening begins, which if they could not do, yet doubtlesse God would accept their will for the deed in such a case.