'Seventy' in the Bible

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

Now Gideon had seventy sons born to him, because he had many wives.

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

And they gave him seventy pieces of silver from the house of Baal-berith, with which Abimelech hired worthless and undisciplined men, and they followed (supported) him.

Then he went to his father’s house at Ophrah and murdered his brothers the sons of Jerubbaal, seventy men, [in a public execution] on one stone. But Jotham the youngest son of Jerubbaal was left alive, because he had hidden himself.

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

so that the violence done to the seventy sons of Jerubbaal (Gideon) might come [on the guilty], and that their [innocent] blood might be laid on Abimelech their brother, who had killed them, and on the leaders of Shechem, who strengthened his hands (encouraged him) to kill his brothers.

In this way God repaid the wickedness of Abimelech, which he had done to his father [Jerubbaal] by killing his seventy brothers.

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