Sin and the Whole Law

What proves that the law is an undivided whole?BR-ASI9 263.2

“For whosoever shall keep the whole law, and yet offend in one point, he is guilty of all. For He that said [margin, “that law which said”], Do not commit adultery, said also, Do not kill. Now if thou commit no adultery, yet if thou kill, thou art become a transgressor of the law. So speak ye, and so do, as they that shall be judged by the law of liberty.” James 2:10-12.BR-ASI9 263.3

How is sin defined?BR-ASI9 263.4

“Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law.” 1 John 3:4.BR-ASI9 263.5

Does faith render the law void?BR-ASI9 263.6

“Do we then make void the law through faith? God forbid: yea, we establish the law.” Romans 3:31.BR-ASI9 263.7