30 David took the crown from their king's
30 And he took the crown of their king from his head. The weight of it was a talent
30 He took the crown from their king's head - very heavy with gold, and with a precious stone in it. It ended up on David's head. And they plundered the city, carrying off a great quantity of loot.
30 Then he took their king's crown from his head. Its weight was a talent of gold, with precious stones. And it was set on David's head. Also he brought out the spoil of the city in great abundance.
30 David removed the crown from the king's head, and it was placed on his own head. The crown was made of gold and set with gems, and it weighed seventy-five pounds. David took a vast amount of plunder from the city.
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.