We have enjoined upon all mankind to establish the Most Great Peace—the surest of all means for the protection of humanity. The sovereigns of the world should, with one accord, hold fast thereunto, for this is the supreme instrument that can ensure the security and welfare of all peoples and nations. They, verily, are the manifestations of the power of God and the daysprings of His authority. We beseech the Almighty that He may graciously assist them in that which is conducive to the well-being of their subjects. Bahá’u’lláh, Tablets of Bahá’u’lláh Revealed After the Kitáb-i-Aqdas. Available from https://reference.bahai.org/en/t/b/TB/tb-9.html#pg126