Genesis 16:3
Abram listened to Sarai's suggestion, so Abram's wife Sarai took her Egyptian servant, Hagar, and gave her as a wife to her husband Abram. This took place ten years after Abram had settled in the land of Canaan.
Genesis 12:4-5
So Abram left there, as the LORD had directed him, and Lot accompanied him. Abram was 75 years old when he left Haran.
Genesis 16:5
Then Sarai told Abram, "My suffering is your fault! I gave you my servant so you could have sex with her, and when she discovered that she was pregnant, she looked on me with contempt. May the LORD judge between you and me!"
Genesis 25:6
While he was still alive, Abraham gave gifts to his concubines and sent them to the east country in order to keep them away from his son Isaac.
Genesis 28:9
so he went to Abraham's son Ishmael and married Ishmael's daughter Mahalath, who was the sister of Nebaioth.
Genesis 30:4
So Rachel gave Jacob her woman servant Bilhah to be his wife, and Jacob had sex with her.
Genesis 30:9
When Leah saw that she had stopped bearing children, she took her woman servant Zilpah and gave her to Jacob as a wife.
Genesis 32:22
Later that night, he woke up, quickly took his two wives, his two women servants, and his eleven children, and forded the river at Jabbok.
Genesis 35:22
But while Israel lived in that land, Reuben went inside his father's tent and had sexual relations with his father's concubine Bilhah, and Israel heard about it. Now Jacob had twelve sons.
Judges 19:1-4
Now it happened in those days, before there was a king in Israel, that a certain male descendant of Levi, who lived in a remote part of the mountainous region of Ephraim, took a mistress for himself from Bethlehem in the territory of Judah.
2 Samuel 5:13
But after arriving in Jerusalem after leaving Hebron, David took more wives and mistresses, and more sons and daughters were born to David.
1 Kings 11:3
He had 700 princess wives and 300 mistresses who turned his heart away from the LORD,
Galatians 4:25
Now Hagar is Mount Sinai in Arabia and corresponds to present-day Jerusalem, because she is in slavery along with her children.