And Sarai Abram’s wife took Hagar her maid the Egyptian, after Abram had dwelt ten years in the land of Canaan, and gave her to her husband Abram to be his wife.
And Sarai said to Abram, My wrong be on you: I have given my maid into your bosom; and when she saw that she had conceived, I was despised in her eyes: the LORD judge between me and you.
But to the sons of the concubines, which Abraham had, Abraham gave gifts, and sent them away from Isaac his son, while he yet lived, eastward, to the east country.
Then went Esau to Ishmael, and took besides the wives which he had Mahalath the daughter of Ishmael Abraham’s son, the sister of Nebajoth, to be his wife.
And it came to pass, when Israel dwelt in that land, that Reuben went and lay with Bilhah his father’s concubine: and Israel heard it. Now the sons of Jacob were twelve:
And David took for himself more concubines and wives out of Jerusalem, after he had come from Hebron: and there were yet sons and daughters born to David.