Bythner's grammatical works, though written in curiously faulty Latinare models of lucid and compact arrangement, and continued long in use. His Hebrew grammar (the current item) was originally published in 1638 and was reprinted several times.

Of his other writings, the most important is Lyra Prophetica Davidis Regis (London, 1650) which is a grammatical analysis of every word in the Hebrew psalter.

This edition includes one folded table printed in black and red showing "De verbo paradigma explicitum conjugationum Hebraicarum".