III. That he should be accurate, and critical, and very exact in the administration of his government and the exercise of the power committed to him (v. 3): The Spirit wherewith he shall be clothed shall make him of quick understanding in the fear of the Lord—of an acute smell or scent (so the word is), for the apprehensions of the mind are often expressed by the sensations of the body. Note, 1. Those are most truly and valuably intelligent that are so in the fear of the Lord, in the business of religion, for that is both the foundation and top-stone of wisdom. 2. By this it will appear that we have the Spirit of God, if we have spiritual senses exercised, and are of quick understanding in the fear of the lord. Those have divine illumination that know their duty and know how to go about it. 3. Therefore Jesus Christ had the spirit without measure, that he might perfectly understand his undertaking; and he did so, as appears not only in the admirable answers he gave to all that questioned with him, which proved him to be of quick understanding in the fear of the Lord, but in the management of his whole undertaking. He has settled the great affair of religion so unexpectedly well (so as effectually to secure both God's honour and man's happiness) that, it must be owned, he thoroughly understood it.