Leviticus 25:54
And if he is not redeemed in this way, then he shall go out in the year of jubilee, he and his sons with him.
Exodus 21:2-3
If you buy a Hebrew servant, he shall serve six years. And in the seventh he shall go out free for nothing.
Leviticus 25:40-41
As a hired servant, as a temporary resident, he shall be with you, and shall serve you until the year of jubilee.
Isaiah 49:9
that You may say to the prisoners, Go out! To those who are in darkness, Show yourselves! They shall feed in the ways, and their pastures shall be in all high places.
Isaiah 49:25
But so says Jehovah, Even the captives of the mighty shall be taken away, and the prey of the fearful ones shall escape. For I will contend with him who contends with you, and I will save your sons.
Isaiah 52:3
For so says Jehovah, You were sold for nothing; and you shall not be redeemed with silver.