Gideon had seventy sons who were his own offspring, for he had many wives (Judges 8.30).
That is a lot of sons!
Is there any significance to how many sons he had, and the fact that they numbered 70? I do not see where the Bible makes a point of it, and so we must conclude that this is an incidental reference to the number 7.
- Judges 8.14 – Seventy-seven leaders of Succoth (sevensinthebible.com)
- Judges 8.26 – Incidental reference to seven (sevensinthebible.com)
- Judges 6.25 – Second bull of seven years (sevensinthebible.com)
- Lessons From Gideon (vineoflifenews.com)