18 Then he said to Zebah and Zalmun'na, "Where are the men whom you slew at Tabor?" They answered, "As you are, so were they, every one of them; they resembled the sons of a king." 19 And he said, "They were my brothers, the sons of my mother; as the Lord lives, if you had saved them alive, I would not slay you." 20 And he said to Jether his first-born, "Rise, and slay them." But the youth did not draw his sword; for he was afraid, because he was still a youth. 21 Then Zebah and Zalmun'na said, "Rise yourself, and fall upon us; for as the man is, so is his strength." And Gideon arose and slew Zebah and Zalmun'na; and he took the crescents that were on 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.