Geoffrey Chaucer,
The Canterbury Tales (unsourced…
(14th century)
“ Now will I speak of oathes false and great A word or two, as olde bookes treat. Great swearing is a thing abominable, And false swearing is more reprovable. The highe God forbade swearing at all; Witness on Matthew: but in special Of swearing saith the holy Jeremie, Thou thalt swear sooth thine oathes, and not lie: And swear in doom and eke in righteousness; But idle swearing is a cursedness. Behold and see, there in the firste table Of highe Godde's hestes honourable, How that the second best of him is this, Take not my name in idle or amiss. ”
