John Wesley on 2 Chronicles 32:31

Wonder that was done - Either the destruction of the Assyrians, or the going back of the sun. These miracles were wrought to alarm and awaken a stupid, careless world, and to turn them from dumb and lame idols to the living God. God left him - To himself, and suffered Satan to try him; that he might know he had infirmities and sins as well as virtues. O what need have great men, and good men, and useful men, to study their own follies and infirmities, and to beg earnestly of God, that he would hide pride from them!