Exodus 21:3-5

Amplified Bible

³ If he came [to you] alone, he shall leave alone; if he came married, then his wife shall leave with him. ⁴ If his master gives him a wife, and she gives birth to sons or daughters, the wife and her children shall belong to her master, and he shall leave [your service] alone. ⁵ But if the servant plainly says, ‘I love my master, my wife and my children; I will not leave as a free man,’