Albert Barnes' Notes on the Whole Bible - Job 31:1
I made a covenant with mine eyes - The first virtue of his private life to which Job refers is chastity. Such was his sense of the importance of this, and of the danger to which man was exposed, that he had solemnly resolved not to think upon a young female. The phrase here, “I made a covenant with mine eyes,” is poetical, meaning that he solemnly resolved. A covenant is of a sacred and binding nature; and the strength of his resolution was as great as if he had made a solemn compact. A... read more
The Pulpit Commentary - Job 31:2
For what portion of God is there from above? The meaning seems to be, "For what portion in God would there be to me from above, if I were so to act?" i.e. if I were secretly to nurse and indulge my lusts. Impurity, perhaps, more than any other sin, cuts off from God, who is "of purer eyes than to behold iniquity" ( Habakkuk 1:13 ). And what inheritance of the Almighty from on high! What should I inherit, i.e. what should I receive, from on high, if I were so sinful? The next verse... read more