Charles Ellicott Commentary Job 31:1

"I made a covenant with mine eyes; How then should I look upon a virgin?" — Job 31:1 (ASV)

I made a covenant with my eyes. — Job makes one grand profession of innocence, recounting his manner of life from the beginning. Here, he does not content himself with addressing the accusations of his friends, but also professes his innocence of sins less apparent to others and concerning secret conduct and the heart—specifically, sensual transgression and idolatry.

His object, therefore, is to show his friends that he has really been more upright than their standard demanded or than they supposed him to be, until his affliction made them suspect him. This uprightness was the consequence of rigid and inflexible adherence to principle, for he made a covenant with his eyes, as the pathways of sinful desires .