'Purer' in the Bible

Purer were her Nazarites than snow, Whiter than milk, ruddier of body than rubies, Of sapphire their form.

Purer of eyes than to behold evil, To look on perverseness Thou art not able, Why dost Thou behold the treacherous? Thou keepest silent when the wicked Doth swallow the more righteous than he,