'Pure' in the Bible

for, lo, this same thing -- your being made sorry toward God -- how much diligence it doth work in you! but defence, but displeasure, but fear, but longing desire, but zeal, but revenge; in every thing ye did approve yourselves to be pure in the matter.

for I am zealous for you with zeal of God, for I did betroth you to one husband, a pure virgin, to present to Christ,