Exodus 21:3-5

King James Version

³ If he came in by himself, he shall go out by himself: if he were married, then his wife shall go out with him.

⁴ If his master have given him a wife, and she have born him sons or daughters; the wife and her children shall be her master's, and he shall go out by himself.

⁵ And if the servant shall plainly say, I love my master, my wife, and my children; I will not go out free: