1 Corinthians 7:21-23

21 Art thou called [being] a servant? care not for it; but if thou may be made free, use [it] rather.

22 For he that is called in the Lord, [being] a servant, is the Lord's freeman; likewise also he that is called, [being] free, is Christ's servant.

23 Ye are bought with a price; do not make yourselves the servants of men.