Genesis 16:3
So after Abram had lived in Canaan for ten years, Sarai, Abram's wife, gave Hagar, her Egyptian servant, to her husband to be his wife.
Genesis 12:4-5
So Abram left, just as the Lord had told him to do, and Lot went with him. (Now Abram was 75 years old when he departed from Haran.)
Genesis 16:5
Then Sarai said to Abram, "You have brought this wrong on me! I allowed my servant to have sexual relations with you, but when she realized that she was pregnant, she despised me. May the Lord judge between you and me!"
Genesis 25:6
But while he was still alive, Abraham gave gifts to the sons of his concubines and sent them off to the east, away from his son Isaac.
Genesis 28:9
So Esau went to Ishmael and married Mahalath, the sister of Nebaioth and daughter of Abraham's son Ishmael, along with the wives he already had.
Genesis 30:4
So Rachel gave him her servant Bilhah as a wife, and Jacob had marital relations with her.
Genesis 30:9
When Leah saw that she had stopped having children, she gave her servant Zilpah to Jacob as a wife.
Genesis 32:22
During the night Jacob quickly took his two wives, his two female servants, and his eleven sons and crossed the ford of the Jabbok.
Genesis 35:22
While Israel was living in that land, Reuben had sexual relations with Bilhah, his father's concubine, and Israel heard about it. Jacob had twelve sons:
Judges 19:1-4
In those days Israel had no king. There was a Levite living temporarily in the remote region of the Ephraimite hill country. He acquired a concubine from Bethlehem in Judah.
2 Samuel 5:13
David married more concubines and wives from Jerusalem after he arrived from Hebron. Even more sons and daughters were born to David.
1 Kings 11:3
He had 700 royal wives and 300 concubines; his wives had a powerful influence over him.
Galatians 4:25
Now Hagar represents Mount Sinai in Arabia and corresponds to the present Jerusalem, for she is in slavery with her children.