Be ye not as the horse - The horse as it is by nature - wild, ungoverned, unwilling to be caught and made obedient. The counsel referred to in the previous verse is here given; and it is, that one who wishes to obtain the favor of God should not be as the wild and unbroken horse, an animal that can be subdued only by a curb, but should evince a calm, submissive spirit - a spirit “disposed” to obey and submit. If he becomes a subject of God’s government, he is not to be subdued and held as the horse is - by mere force; there must be the cheerful submission of the will. People are not brought into the service of God by physical power; they are not kept there by an iron “curb.” They come and yield themselves willingly to his law; they “must” come with that spirit if they would find the favor of God.
Or as the mule - The mule is distinguished for its obstinacy, and this is evidently the ground of comparison here. The meaning is, be tractable, gentle, yielding; submit to the guidance and direction of God and his truth.
Which have no understanding - That cannot be controlled by reason and conscience. They are governed only by power and by fear. People have reason and conscience, and they should allow themselves to be controlled by appeals TO their reason and to their moral sense. They are not made to be governed as brutes are. Since they have a higher nature, they should permit themselves to be governed by it.
Whose mouth must be held in with bit and bridle - More literally, “in bit and bridle is their ornament to restrain them;” that is, the trappings or the ornaments of the horse and the mule consist of the bridle and the bit, the purpose of which is to restrain or control them. The allusion, however, is not to the bit and bridle as an “ornament,” but as the ordinary trappings of the mule and the horse.
Lest they come near unto thee - Or rather, “because of its not approaching thee;” that is, because the horse and the mule will not come to thee of their own accord, but must be restrained and controlled.