[99] From this consideration it was, that Jacob, the practiser of virtue, at the beginning of his prayers, says: "Of all that thou givest me, I will set apart and consecrate a tenth to thee." [37] And the sacred scripture, which was written after the prayers on occasion of victory, which Melchisedek, who had received a self-instructed and self-taught priesthood, makes, says: "For he gave him a tenth of all things," [38] assigning to him the outward senses the faculty of feeling properly, and by the sense of speech the faculty of speaking well, and by the senses connected with the mind the faculty of thinking well.