Leviticus 25:54
If he be not bought free in the meantime, then he shall go out in the trumpet year and his children with him;
Exodus 21:2-3
If thou buy a servant that is an Hebrew, sixth years he shall serve, and the seventh he shall go out free paying nothing.
Leviticus 25:40-41
but as a hired servant and as a sojourner he shall be with thee, and shall serve thee unto the trumpet year,
Isaiah 49:9
That thou mayest say to the prisoners, "Go forth," and to them that are in darkness, "Come into the light." That they may feed in the high ways, and get their living in all places.
Isaiah 49:25
And therefore thus sayeth the LORD: The prisoners shall be taken from the giant, and the spoil delivered from the violent; for I will maintain thy cause against thine adversaries, and save thy sons.
Isaiah 52:3
For thus sayeth the LORD: Ye are sold for naught, therefore shall ye be redeemed also without any money.