2 Samuel 12:31
And he brought out the people that was therein and sawed them and drew harrows of iron upon them, and shred some of them with shredding knives of iron, and thrust some into furnaces. And so he served all the cities of the children of Ammon. And then David and all the people returned unto Jerusalem.
1 Chronicles 20:3
And he brought out the people that were in it and tamed them with saws and harrows of iron and with brakes, and so dealt David with all the cities of the children of Ammon. And then David and all the people came again to Jerusalem.
2 Samuel 8:2
And he beat the Moabites and measured them with a line, making them lie along the earth; so that he brought two parts of them to death, and let one part live. And so the Moabites became David's servants, and paid tribute.
Psalm 21:8-9
All thine enemies shall feel thine hand; thy righthand shall find out them that hate thee.
Amos 1:3
"Thus sayeth the LORD, 'For three and four wickednesses of Damascus, I will not spare her: because they have threshed Gilead with iron stales.