272No understanding can grasp the nature of His Revelation, nor can any knowledge comprehend the full measure of His Faith. All sayings are dependent upon His sanction, and all things stand in need of His Cause. All else save Him are created by His command, and move and have their being through His law. He is the Revealer of the divine mysteries, and the Expounder of the hidden and ancient wisdom. Thus it is related in the “Biḥáru’l-Anvár,” the “‘Aválim,” and the “Yanbú‘” of Ṣádiq, son of Muḥammad, that he spoke these words: “Knowledge is twenty and seven letters. All that the Prophets have revealed are two letters thereof. No man thus far hath known more than these two letters. But when the Qá’im shall arise, He will cause the remaining twenty and five letters to be made manifest.” Consider; He hath declared Knowledge to consist of twenty and seven letters, and regarded all the Prophets, from Adam even unto the “Seal,” as