This substitution is unknown to mere law, and above and beyond the powers of law. It is an operation of grace. Grace, however, does not violate or suspend law, but takes it up into itself and fulfills it. The righteousness of law is maintained, in that the source of all law, the judge and punisher, himself voluntarily submits to bear the penalty, and bears it in the human nature that has sinned.
Augustus Hopkins Strong | Systematic Theology