Judges 8:30

30 Gideon had seventy sons who were his own offspring, for he had many wives.

Judges 8:30 Meaning and Commentary

Judges 8:30

And Gideon had seventy sons of his body begotten
Not after his victories, for it is plain he had children before; mention is made of Jether, his firstborn, as a youth able to draw a sword, and slay with it, ( Judges 8:20 ) but this was the number of all his sons, both before and after, and a large number it was; and the phrase "of his body begotten", or "that went out of his thigh" is used to show that they were his own sons, begotten in wedlock, and not sons that he had taken into his family by adoption, or that he was father-in-law to, having married a woman or women that had sons by a former husband; but these were all his own:

for he had many wives;
which, though not agreeable to the original law of marriage, was customary in those times, and even with good men, and was connived at; and this is a reason accounting for his having so many sons.

Judges 8:30 In-Context

28 Thus Midian was subdued before the children of Israel, so that they lifted their heads no more. And the country was quiet for forty years in the days of Gideon.

29 Then Jerubbaal the son of Joash went and dwelt in his own house.

30 Gideon had seventy sons who were his own offspring, for he had many wives.

31 And his concubine who was in Shechem also bore him a son, whose name he called Abimelech.

32 Now Gideon the son of Joash died at a good old age, and was buried in the tomb of Joash his father, in Ophrah of the Abiezrites.