In this verse, God speaks to the Israelites, who have found themselves in captivity. They were not sold into this situation for any price, symbolizing that their suffering was not a result of a transaction but rather a consequence of their own actions and turning away from God. Despite this, God promises that their redemption will come freely, without any cost to them. This reflects the nature of God's grace—His willingness to restore and redeem His people out of love and mercy, not because of any payment or merit on their part.
This message is timeless and speaks to the heart of Christian faith, where salvation is seen as a gift from God, not something that can be earned or purchased. It reassures believers that no matter how far they have strayed or how difficult their circumstances, God's love and power to redeem remain steadfast. This promise of redemption without cost is a precursor to the New Testament message of salvation through Jesus Christ, which is offered freely to all who believe.