How do we know the spiritual implications of murder?

Paul noted the spiritual depth of the law in Romans 7:14, where he acknowledged his own sinfulness. The inward struggle with sin indicates that breaking one commandment means breaking them all (James 2:10). Jesus expands on this in Matthew 5, clarifying that expressions of anger or contempt are violations of the command. This broader definition highlights that God looks at the heart, not just outward actions. Hence, feelings like anger or hatred make us guilty of the same spiritual crime as physical murder, illustrating our desperate need for grace and forgiveness.