Judges 8:18-21 NIV

18 Then he asked Zebah and Zalmunna, "What kind of men did you kill at Tabor?1" "Men like you," they answered, "each one with the bearing of a prince."

References for Judges 8:18

19 Gideon replied, "Those were my brothers, the sons of my own mother. As surely as the LORD lives,2 if you had spared their lives, I would not kill you."

References for Judges 8:19

20 Turning to Jether, his oldest son, he said, "Kill them!" But Jether did not draw his sword, because he was only a boy and was afraid.
21 Zebah and Zalmunna said, "Come, do it yourself. 'As is the man, so is his strength.' " So Gideon stepped forward and killed them, and took the ornaments3 off their camels' necks.

References for Judges 8:21