Judges 8:31

His concubine who was in Shechem also bore him a son, and he named him Abimelech.

Genesis 16:15

So Hagar bore Abram a son; and Abram called the name of his son, whom Hagar bore, Ishmael.

Genesis 20:2

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

Genesis 22:24

His concubine, whose name was Reumah, also bore Tebah and Gaham and Tahash and Maacah.

Judges 9:1-5

And Abimelech the son of Jerubbaal went to Shechem to his mother’s relatives, and spoke to them and to the whole clan of the household of his mother’s father, saying,

Judges 9:18

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—

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 to his mother’s relatives, and spoke to them and to the whole clan of the household of his mother’s father, saying,
Genesis 16:15
So Hagar bore Abram a son; and Abram called the name of his son, whom Hagar bore, Ishmael.
Genesis 22:24
His concubine, whose name was Reumah, also bore Tebah and Gaham and Tahash and Maacah.