James 2:10-11 (NIV)

¹⁰ For whoever keeps the whole law and yet stumbles at just one point is guilty of breaking all of it. ¹¹ For he who said, “You shall not commit adultery,” also said, “You shall not murder.” If you do not commit adultery but do commit murder, you have become a lawbreaker.

Source: What to do with Katie // Are All Sins Equal? | Chris Fabry Live | Moody Radio