8 If you really keep the royal law found in Scripture, “Love your neighbor as yourself,” you are doing right. 9 But if you show favoritism, you sin and are convicted by the law as lawbreakers. 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, “Do not commit adultery,” also said, “Do not murder.” If you do not commit adultery but do commit murder, you have become a lawbreaker.
Verse 10 is teaching us if we stumble at just one point we are guilty of breaking all of the law because the law is the reflection of the character and holiness of God and if we are going to dwell in an eternal relationship with Him then we need to be perfect in character as well. We need to be holy.

