Romans 6:16

New International Version (NIV)

¹⁶ Don't you know that when you offer yourselves to someone as obedient slaves, you are slaves of the one you obey — whether you are slaves to sin, which leads to death, or to obedience, which leads to righteousness?

From BibleGateway.com: http://www.biblegateway.com/passage/?search=Romans 6:16&version=NIV
NIV®