Leviticus 25:54
And if he be not redeemed in this manner, then he shall go out in the year of jubilee, he and his children with him.
Exodus 21:2-3
If thou buy a Hebrew bondman, six years shall he serve; and in the seventh he shall go out free for nothing.
Leviticus 25:40-41
as a hired servant, as a sojourner, shall he be with thee; until the year of jubilee shall he serve thee.
Isaiah 49:9
saying to the prisoners, Go forth; to them that are in darkness, Shew yourselves. They shall feed in the ways, and their pasture shall be on all bare hills.
Isaiah 49:25
For thus saith Jehovah: Even the captive of the mighty shall be taken away, and the prey of the terrible shall be delivered; and I will strive with him that striveth with thee, and I will save thy children.
Isaiah 52:3
For thus saith Jehovah: Ye have sold yourselves for nought, and ye shall be redeemed without money.