John Wesley on Esther 5:10

Refrained - From taking present vengeance upon Mordecai, which he might easily have effected, either by his own, or any of his servants hands, without any fear of inconveniency to himself. But herein God's wise and powerful providence appeared, in disposing Haman's heart, contrary to his own inclination, and making him, as it were, to put fetters upon his own hands.