Charles H. Spurgeon on Psalms 119:37

Turn away mine eyes. Lest looking cause liking and lusting: 1 John 2:16. In Hebrew the same word signifieth both an eye and a fountain; to show that from the eye, as from a fountain, floweth much mischief; and by that window Satan often winds himself into the soul. This David found by experience, and therefore prays here, "Turn away, "transfer, make to pass "mine eyes, "etc. He knew the danger of irregular glancing and inordinate gazing. John Trapp.