The aungel of God hath me the trouthe ytaught
Which thou shalt seen, if that thou wolt reneye
The ydoles and be clene, and elles naught.

– Geoffrey Chaucer

The Canterbury Tales, The Second Nun’s Tale. Valerian tells brother Tiburtius that an angel of God has taught him the truth of Christianity. His brother will see this if he renounces idols and be cleansed of sin.