2Sa 12:31 And he brought out the people who were in it and set them to labor with saws and iron picks and iron axes and made them toil at the brick kilns. And thus he did to all the cities of the Ammonites. Then David and all the people returned to Jerusalem.

1Ki 7:9 All these were made of costly stones, cut according to measure, sawed with saws, back and front, even from the foundation to the coping, and from the outside to the great court.
1Ch 20:3 And he brought out the people who were in it and set them to labor with saws and iron picks and axes. And thus David did to all the cities of the Ammonites. Then David and all the people returned to Jerusalem.

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