And Sarai said unto Abram, Behold now, the LORD has restrained me from bearing: I pray you, go in unto my maid; it may be that I may obtain children by her. And Abram hearkened to the voice of Sarai.
But unto the sons of the concubines, whom Abraham had, Abraham gave gifts, and sent them away from Isaac his son, while he yet lived, eastward, unto the east country.
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:
Thus says the LORD, Behold, I will raise up evil against you out of your own house, and I will take your wives before your eyes, and give them unto your neighbor, and he shall lie with your wives in the sight of this sun.