'Seventy' in the Bible

Adoni-bezek said, “Seventy kings with their thumbs and their big toes cut off used to gather up scraps under my table; as I have done, so God has repaid me.” So they brought him to Jerusalem and he died there.

Now Gideon had seventy sons who were his direct descendants, for he had many wives.

“Speak, now, in the hearing of all the leaders of Shechem, ‘Which is better for you, that seventy men, all the sons of Jerubbaal, rule over you, or that one man rule over you?’ Also, remember that I am your bone and your flesh.”

They gave him seventy pieces of silver from the house of Baal-berith with which Abimelech hired worthless and reckless fellows, and they followed him.

Then he went to his father’s house at Ophrah and killed his brothers the sons of Jerubbaal, seventy men, on one stone. But Jotham the youngest son of Jerubbaal was left, for he hid himself.

but you have risen against my father’s house today and have killed his sons, seventy men, on one stone, and have made Abimelech, the son of his maidservant, king over the men of Shechem, because he is your relative—

so that the violence done to the seventy sons of Jerubbaal might come, and their blood might be laid on Abimelech their brother, who killed them, and on the men of Shechem, who strengthened his hands to kill his brothers.

Thus God repaid the wickedness of Abimelech, which he had done to his father in killing his seventy brothers.

He had forty sons and thirty grandsons who rode on seventy donkeys; and he judged Israel eight years.