30 He took the crown of Milcom from his head; the weight of it was a talent of gold, and in it was a precious stone; and it was placed on David's head. He also brought forth the spoil of the city, a very great amount.

Matthew Henry's Commentary on 2 Samuel 12:30

Commentary on 2 Samuel 12:26-31

(Read 2 Samuel 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.