Commentaries
12:26-31 To be thus severe in putting the children of Ammon to slavery was a sign that David's heart was not yet made soft by repentance, at the time when this took place. We shall be most compassionate, kind, and forgiving to others, when we most feel our need of the Lord's forgiving love, and taste the sweetness of it in our own souls.
31. he brought forth the people … and put them under saws, &c.—This excessive severity and employment of tortures, which the Hebrews on no other occasion are recorded to have practised, was an act of retributive justice on a people who were infamous for their cruelties (1Sa 11:2; Am 1:13).