The sons of my mother - A much closer relation than that of brothers by the father only. (Compare Genesis 43:29; Deuteronomy 13:6; Psalms 69:8). This is the only hint preserved of the transaction. We cannot say exactly when the slaughter of Gideon’s brethren on Mount Tabor took place, whether before the outbreak of the war Judges 6:33, or in the retreat and flight of the Midianites Judges 7:22.
Related Commentaries of Judges 8:19
Judges 8:19
19 And he said, They were my brethren, even the sons of my mother: as the LORD liveth, if ye had saved them alive, I would not slay you.