Romans 6:22

But now, since you have been freed from [the practice of] sin and have become slaves to God, the benefits you receive are a holy life [here] and never ending life in the future.

1 Corinthians 7:21-23

Were you a slave when you were called? It should not matter to you [i.e., if you still are]. But if, indeed, you can become a free person, then use that freedom instead [i.e., for serving God].

Treasury of Scripture Knowledge

Summary

For they are my servants, which I brought forth out of the land of Egypt: they shall not be sold as bondmen.

Bible References

My servants

Romans 6:22
But now, since you have been freed from [the practice of] sin and have become slaves to God, the benefits you receive are a holy life [here] and never ending life in the future.
1 Corinthians 7:21
Were you a slave when you were called? It should not matter to you [i.e., if you still are]. But if, indeed, you can become a free person, then use that freedom instead [i.e., for serving God].