1 Corinthians 7:20-22 New King James Version (NKJV)

20. Let each one remain in the same calling in which he was called.

21. Were you called while a slave? Do not be concerned about it; but if you can be made free, rather use it.

22. For he who is called in the Lord while a slave is the Lord’s freedman. Likewise he who is called while free is Christ’s slave.

1 Corinthians 7