18 Then Gideon asked Zebah and Zalmunna, "The men you killed at Tabor-what were they like?" "Like you," they replied. "They all had the look of a king's son." 19 "They were my brothers, the sons of my own mother!" Gideon exclaimed. "As surely as the Lord lives, I wouldn't kill you if you hadn't killed them." 20 Turning to Jether, his oldest son, he said, "Kill them!" But Jether did not draw his sword, for he was only a boy and was afraid. 21 Then Zebah and Zalmunna said to Gideon, "Be a man! Kill us yourself!" So Gideon killed them both and took the royal ornaments from the necks of their camels.
Matthew Henry's Commentary on Judges 8:18-21
Commentary on Judges 8:18-21
(Read Judges 8:18-21)
The kings of Midian must be reckoned with. As they confessed themselves guilty of murder, Gideon acted as the avenger of blood, being the next of kin to the persons slain. Little did they think to have heard of this so long after; but murder seldom goes unpunished in this life. Sins long forgotten by man, must be accounted for to God. What poor consolation in death from the hope of suffering less pain, and of dying with less disgrace than some others! yet many are more anxious on these accounts, than concerning the future judgment, and what will follow.