Romans 6:20

For, when ye were servants of sin, ye were free as to righteousness; -

Romans 6:16-17

Know ye not that, unto whom ye are presenting yourselves as servants for obedience, servants ye are unto him unto whom ye are obedient, whether of sin unto death or of obedience unto righteousness?

John 8:34

Jesus answered them, Verily, verily, I say unto you: Every one who committeth sin, is, a slave, of sin:

Treasury of Scripture Knowledge

Summary

For when ye were the servants of sin, ye were free from righteousness.

The servants

General references

Bible References

The servants

Romans 6:16
Know ye not that, unto whom ye are presenting yourselves as servants for obedience, servants ye are unto him unto whom ye are obedient, whether of sin unto death or of obedience unto righteousness?
John 8:34
Jesus answered them, Verily, verily, I say unto you: Every one who committeth sin, is, a slave, of sin:

General references

Colossians 3:7
Wherein, ye also, walked, at one time, when ye were living in these things;