Gleanings — Paragraph 474

Know thou for a certainty that whoso disbelieveth in God is neither trustworthy nor truthful. This, indeed, is the truth, the undoubted truth. He that acteth treacherously towards God will, also, act treacherously towards his king. Nothing whatever can deter such a man from evil, nothing can hinder him from betraying his neighbor, nothing can induce him to walk uprightly.