Tithes and offering is not a debt owed, but a seed sown for increase.

Malachi 3: 10 (KJV) – bring ye all the tithes into the storehouse, that there may be meat in mine house, and prove me now herewith, saith the Lord of hosts, if I will not open you the windows of heaven, and pour you out a blessing, that there shall not be room enough to receive it.