Is not this it in which my lord drinketh, and {b} whereby indeed he divineth? ye have done evil in so doing.

(b) Because the people thought he could divine, he attributes to himself that knowledge: or else he pretends that he consults with soothsayers: which deceit is worthy to be reproved.

Wesley's Notes

44:5 Is not this it in which my lord drinketh? And for which he would search thoroughly - So it may be rendered.

King James Translators' Notes

divineth: or, maketh trial?

Jamieson-Fausset-Brown Bible Commentary

5. Is not this it in which my lord drinketh-not only kept for the governor's personal use, but whereby he divines. Divination by cups, to ascertain the course of futurity, was one of the prevalent superstitions of ancient Egypt, as it is of Eastern countries still. It is not likely that Joseph, a pious believer in the true God, would have addicted himself to this superstitious practice. But he might have availed himself of that popular notion to carry out the successful execution of his stratagem for the last decisive trial of his brethren.

Matthew Henry's Concise Commentary

44:1-17 Joseph tried how his brethren felt towards Benjamin. Had they envied and hated the other son of Rachel as they had hated him, and if they had the same want of feeling towards their father Jacob as heretofore, they would now have shown it. When the cup was found upon Benjamin, they would have a pretext for leaving him to be a slave. But we cannot judge what men are now, by what they have been formerly; nor what they will do, by what they have done. The steward charged them with being ungrateful, rewarding evil for good; with folly, in taking away the cup of daily use, which would soon be missed, and diligent search made for it; for so it may be read, Is not this it in which my lord drinketh, as having a particular fondness for it, and for which he would search thoroughly? Or, By which, leaving it carelessly at your table, he would make trial whether you were honest men or not? They throw themselves upon Joseph's mercy, and acknowledge the righteousness of God, perhaps thinking of the injury they had formerly done to Joseph, for which they thought God was now reckoning with them. Even in afflictions wherein we believe ourselves wronged by men, we must own that God is righteous, and finds out our sin.