Jeremiah 2:14
"Is Israel a slave? Is he a homeborn servant? Why then has he become a prey?
Exodus 4:22
Then you shall say to Pharaoh, 'Thus says the LORD, Israel is my firstborn son,
Genesis 15:3
And Abram said, "Behold, you have given me no offspring, and a member of my household will be my heir."
Ecclesiastes 2:7
I bought male and female slaves, and had slaves who were born in my house. I had also great possessions of herds and flocks, more than any who had been before me in Jerusalem.
Isaiah 50:1
Thus says the LORD: "Where is your mother's certificate of divorce, with which I sent her away? Or which of my creditors is it to whom I have sold you? Behold, for your iniquities you were sold, and for your transgressions your mother was sent away.