King James Version
Be ye not as the horse, or as the mule, which have no understanding: whose mouth must be held in with bit and bridle, lest they come near unto thee.English Standard Version
Be not like a horse or a mule, without understanding, which must be curbed with bit and bridle, or it will not stay near you.Catholic Public Domain Version
Do not become like the horse and the mule, which have no understanding. Their jaws are constrained with bit and bridle, so as not to draw near to you