Say, O friends! Strive that haply the tribulations suffered by this Wronged One and by you, in the path of God, may not prove to have been in vain. Cling ye to the hem of virtue, and hold fast to the cord of trustworthiness and piety. Concern yourselves with the things that benefit mankind, and not with your corrupt and selfish desires. O ye followers of this Wronged One! Ye are the shepherds of mankind; liberate ye your flocks from the wolves of evil passions and desires, and adorn them with the ornament of the fear of God. This is the firm commandment which hath, at this moment, flowed out from the Pen of Him Who is the Ancient of Days. (Baha’u’llah, ‘Epistle to the Son of the Wolf’)