"Adorn your temples with the adornment of trustworthiness and piety."

"Say: O people of God! Adorn your temples with the adornment of trustworthiness and piety. Help, then, your Lord with the hosts of goodly deeds and a praiseworthy character. We have forbidden you dissension and conflict in My Books, and My Scriptures, and My Scrolls, and My Tablets, and have wished thereby naught else save your exaltation and advancement. Unto this testify the heavens and the stars thereof, and the sun and the radiance thereof, and the trees and the leaves thereof, and the seas and the waves thereof, and the earth and the treasures thereof."

-Bahá'u'lláh, Tablets of Bahá’u’lláh Revealed After the Kitáb-i-Aqdas, p. 120