And Sarai said to Abram, Behold now, the LORD has restrained me from bearing: I pray you, go in to my maid; it may be that I may obtain children by her. And Abram listened to the voice of Sarai.
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.
And it came to pass, when Israel dwelled 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 said 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 to your neighbor, and he shall lie with your wives in the sight of this sun.