"Beware lest the storms of enmity and hatred, or the blasts of the workers of iniquity, cause you to stumble. Be immovable in the Faith of God, and waver not."

"O Feet of this Temple! We, verily, have wrought you of iron. Stand firm with such constancy in the Cause of your Lord as to cause the feet of every severed soul to be strengthened in the path of God, the Almighty, the All-Wise. Beware lest the storms of enmity and hatred, or the blasts of the workers of iniquity, cause you to stumble. Be immovable in the Faith of God, and waver not. We, verily, have called you forth by virtue of that Name which is the source of all steadfastness, and by the grace of each one of Our most excellent Names as revealed unto all who are in heaven and on earth. Erelong shall We bring into being through you other feet, firm and steadfast, which shall walk unwaveringly in Our path, even should they be assailed by hosts as formidable as the combined forces of the former and latter generations. In truth, We hold all grace in the hollow of Our hand, and bestow it as We please upon Our favoured servants. Time and again have We vouchsafed unto you Our favours, that ye may offer such thanks unto your Lord as to cause the tongues of all created things to speak forth in praise of Me, the All-Merciful, the Most Compassionate."

- Bahá'u'lláh, The Summons of the Lord of Hosts, Súriy-i-Haykal, p. 32