"... observe that which hath been sent down in it of the wondrous precepts of your Lord ..."

"While in prison We have revealed a Book which We have entitled ‘The Most Holy Book’. We have enacted laws therein and adorned it with the commandments of thy Lord, Who exerciseth authority over all that are in the heavens and on the earth. Say: Take hold of it, O people, and
observe that which hath been sent down in it of the wondrous precepts of your Lord, the Forgiving, the Bountiful. It will truly prosper you both in this world and in the next and will purge you of whatsoever ill beseemeth you. He is indeed the Ordainer, the Expounder, the Giver, the Generous, the Gracious, the All-Praised."

-Bahá'u'lláh, Tablets of Bahá’u’lláh Revealed After the Kitáb-i-Aqdas, p. 262