Judges 9:5
"And he went unto his father’s house at Ophrah, and slew his brethren the sons of Jerubbaal, being threescore and ten persons, upon one stone: notwithstanding yet Jotham the youngest son of Jerubbaal was left; for he hid himself."
Cross References (ranked by relevance)
Then Gideon built an altar there unto the LORD, and called it Jehovahshalom: unto this day it is yet in Ophrah of the Abiezrites.
Now when Jehoram was risen up to the kingdom of his father, he strengthened himself, and slew all his brethren with the sword, and divers also of the princes of Israel.
Saying, Arise, and take the young child and his mother, and go into the land of Israel: for they are dead which sought the young child’s life.
Then Herod, when he saw that he was mocked of the wise men, was exceeding wroth, and sent forth, and slew all the children that were in Bethlehem, and in all the coasts thereof, from two years old and under, according to the time which he had diligently enquired of the wise men.
Speak, I pray you, in the ears of all the men of Shechem, Whether is better for you, either that all the sons of Jerubbaal, which are threescore and ten persons, reign over you, or that one reign over you? remember also that I am your bone and your flesh.
And when he came to Samaria, he slew all that remained unto Ahab in Samaria, till he had destroyed him, according to the saying of the LORD, which he spake to Elijah.
And Gideon had threescore and ten sons of his body begotten: for he had many wives.