Romans 6:20

For when you were the bondservants of sin, you were under no sort of subjection to Righteousness.

Romans 6:16-17

Do you not know that if you surrender yourselves as bondservants to obey any one, you become the bondservants of him whom you obey, whether the bondservants of Sin (with death as the result)

John 8:34

"In most solemn truth I tell you," replied Jesus, "that every one who commits sin is the 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
Do you not know that if you surrender yourselves as bondservants to obey any one, you become the bondservants of him whom you obey, whether the bondservants of Sin (with death as the result)
John 8:34
"In most solemn truth I tell you," replied Jesus, "that every one who commits sin is the slave of sin.

General references

Colossians 3:7
and you also were once addicted to them, while you were living under their power.