37. Turn away mine eyes. By these words we are taught that all our senses are so filled with vanity, that, until refined and rectified, their alienation from the pursuit of righteousness is no matter of surprise. In the former verse he informed us of the reigning of that depravity in the hearts of men, which he now says reaches also to the outward senses. “The disease of covetousness not only lurks in our hearts, but spreads over every part, so that neither eyes, ears, feet, nor hands, have escaped its baneful influence; in a word, nothing is exempted from corruption.” And we know, assuredly, that the guilt of original sin is not confined to one faculty of man only; it pervades his whole constitution. If our eyes must be turned away from vanity by the special grace of God, it follows, that, as soon as they are opened, they are eagerly set on the impostures of Satan, by which they are beset on all sides. If Satan only laid snares for us, and were we possessed of sufficient prudence to guard against his deceits, it could not, with propriety, be said that God turned away our eyes from vanity; but, as they are naturally set upon sinful allurements, there is need for their being withdrawn from them. As often, then, as we open our eyes, we must not forget that two gates are opened for the devil to enter our hearts, unless God guard us by his Holy Spirit. The remarks which he makes, in reference to the eyes, are equally applicable to the other senses, inasmuch as he again employs that figure of speech, by which a part is taken for the whole.
The other clause of the verse corresponds well with the meaning here given. Others may propose different interpretations; I think, however, the following is the most natural: Lord, as the whole life of mankind is accursed, so long as they employ their powers in committing sin, grant that the power which I possess may aspire after nothing except the righteousness which thou appointest us. The better to manifest this, we must lay it down as a first principle, that seeing, hearing, walking, and feeling, are God’s precious gifts; that our understandings and will, with which we are furnished, are a still more valuable gift; and, after all, there is no look of the eyes, no motion of the senses, no thought of the mind, unmingled with vice and depravity. Such being the case, the prophet, with good reason, surrenders himself entirely to God, for the mortification of the flesh, that he might begin to live anew.