1 Corinthians 7:21-23

Riverside(i) 21 Were you called when a slave? Let it not trouble you. On the contrary, even if you can become free, take it in preference. 22 For the slave who has been called in the Lord is the Lord's freedman. Just so the free man, when called, is the slave of Christ. 23 You were bought with a price. Do not become slaves of men.