Judges 8:31

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

Genesis 16:15

And Hagar bore Abram a son; and Abram called his son's name, which Hagar bore, Ishmael.

Genesis 20:2

And Abraham said of Sarah his wife, She is my sister. And Abimelech king of Gerar sent and took Sarah.

Genesis 22:24

And his concubine, whose name was Reumah, also gave birth to Tebah and Gaham and Thahash and Maachah.

Judges 9:1-5

And Abimelech, the son of Jerubbaal, went to Shechem unto his mother's brethren and spoke with them and with all the family of the house of his mother's father, saying,

Judges 9:18

and ye are risen up against my father's house this day and have slain his sons, seventy men, upon a stone and have made Abimelech, the son of his maidservant, king over the men of Shechem because he is your brother;)

Treasury of Scripture Knowledge

Summary

And his concubine that was in Shechem, she also bare him a son, whose name he called Abimelech.

Bible References

Concubine

Judges 9:1
And Abimelech, the son of Jerubbaal, went to Shechem unto his mother's brethren and spoke with them and with all the family of the house of his mother's father, saying,
Genesis 16:15
And Hagar bore Abram a son; and Abram called his son's name, which Hagar bore, Ishmael.
Genesis 22:24
And his concubine, whose name was Reumah, also gave birth to Tebah and Gaham and Thahash and Maachah.