Psalms 32:8-9

⁸I shall give understanding to thee, and I shall teach thee; in this way in which thou shalt go, I shall make steadfast mine eyes on thee. (And the Lord said, I shall give understanding to thee, and I shall teach thee the way in which thou should go; and I shall put my eyes steadfastly upon thee.)

⁹Do not ye be made as an horse and mule; to which is none understanding. Lord, constrain thou the cheeks of them with a barnacle and bridle; that (they) nigh not to thee. (Do not ye be made like a horse or a mule; which have no understanding, or reasoning ability. Their mouths must be constrained with a bit and a bridle; so that they finally submit to where they should go.)