What is bondage?

Proverbs 22:7

The rich rule over the poor,  and the borrower is slave to the lender.

1 Corinthians 7:23

You were bought at a price; do not become slaves of human beings.

Paying your debts

Romans 13:8  NIV

Let no debt remain outstanding, except the continuing debt to love one another, for whoever loves others has fulfilled the law.