for ever
Leviticus 25:39-42
39
"`And if thy brother who dwelleth by thee be waxed poor and is sold unto thee, thou shalt not compel him to serve as a bond servant;
40
but as a hired servant and as a sojourner he shall be with thee, and shall serve thee unto the Year of Jubilee.
41
And then shall he depart from thee, both he and his children with him, and shall return unto his own family, and unto the possession of his fathers shall he return.
42
For they are My servants, whom I brought forth out of the land of Egypt; they shall not be sold as bondmen.
1 Samuel 1:22
But Hannah went not up; for she said unto her husband, "I will not go up until the child is weaned, and then I will bring him, that he may appear before the LORD and there abide for ever."