Genesis 39:9 - Joseph Benson’s Commentary on the Old and New Testaments

How can I do this great wickedness? How can I, to whom my master has shown so much kindness, when I was a poor, forlorn stranger from a foreign land, and was offered to him in the capacity of a slave; on whom he has conferred so many, and such great favours, keeping back from my enjoyment no part of his property but thee, because thou art his wife; how can I be guilty of such ingratitude as thus to wound him in the tenderest part? How can I, in whom he has reposed such confidence, and to whom he has committed so great a trust as to make me steward and governor of all he has, thus shamefully deceive that confidence, and betray that trust? How can I be so unjust to him as to injure him, in a matter which of all others would give him the greatest pain, and rob him of his greatest and most valuable treasure, the affections and honour of his wife, and his own honour involved therein? How can I be so unkind and cruel to thee, as to countenance and entangle thee in so much guilt and wickedness, laying thee open to the daily reproaches of thy own mind, making an eternal breach and separation between thee and thy husband, and rendering thy whole future life a scene of bitterness and distress? How can I expose thee to the displeasure and wrath of the righteous Lawgiver and just Judge of all the earth, who is the everlasting avenger of all such crimes? And how can I, who profess to be a worshipper and servant of Jehovah, the God of truth, justice, and holiness, do any wickedness, especially such great wickedness as that of committing adultery with the wife of my bountiful benefactor and kind master? How can I thus sin, not only against my master, my mistress, myself, my own body and soul, but against God? Gracious souls look upon this as the worst thing in sin, that it is against God; against his nature and his dominion, against his love and his design. They that love God for this reason hate sin.