Genesis 30:4

Jacob's Children

³ Then she said, "Here [is] my servant girl Bilhah; go in to her that she may bear children {as my surrogate}. Then I will even {have children} by her." ⁴ Then she gave him Bilhah, her female servant, as a wife, and Jacob went in to her ⁵ And Bilhah conceived and gave birth to a son for Jacob.

Bilhah

Jacob

Rachel

Genesis 16:3-4

Then Sarai, the wife of Abram, took Hagar, her Egyptian servant, after Abram had lived ten years in the land of Canaan, and gave her to Abram her husband as his wife.

Genesis 21:10

Then she said to Abraham, "Drive out this slave woman and her son, for the son of this slave woman will not be heir with my son, with Isaac."

Genesis 22:24

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

Genesis 25:1

Now Abraham again took a wife, and her name [was] Keturah.

Genesis 25:6

But to the sons of Abraham's concubines Abraham gave gifts. And while he [was] still living he sent them away eastward, [away] from his son Isaac, to the land of the east.

Genesis 33:2

And he put the female slaves and their children first, then Leah and her children next, then Rachel with Joseph last.

Genesis 35:22

And while Israel was living in that land Reuben went and had sexual relations with Bilhah, his father's concubine. And Israel heard [about it].

2 Samuel 12:11

Thus says Yahweh, 'Look, I [am] going to raise up evil against you from [within] your house, and I will take your women before your eyes, and I will give them to your neighbor, and he shall sleep with your wives {in broad daylight}.