Deuteronomy 15:17

Then take a sharp-pointed instrument, driving it through his ear into the door, and he will be your servant for ever. And you may do the same for your servant-girl.

Leviticus 25:39-42

And if your brother becomes poor and gives himself to you for money, do not make use of him like a servant who is your property;

1 Samuel 1:22

But Hannah did not go, for she said to her husband, I will not go till the child has been taken from the breast, and then I will take him with me and put him before the Lord, where he may be for ever.

Treasury of Scripture Knowledge did not add

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain