Cleanse

I implore Thee, O my God, by the Lights of Thy unity and the Repositories of Thy revelation, to send down from the clouds of Thy mercy that which will cleanse the hearts of all such as have turned towards Thee. Blot out, then, from their hearts all that may induce Thy servants to cavil at Thy Cause.
(Bahá’u’lláh, Prayers and Meditations by Bahá’u’lláh, p. 201)