It is the great truth, embedded in the Old Testament as well as in the New, that love is the fulfilling of the law, and that on two commandments, ‘Thou shalt love the Lord thy God’ and ‘Thou shalt love thy neighbor as thyself’, hang all the law and the prophets (cf. Romans 13:10; Matthew 22:37-40). Among students of Christian ethics no datum is more universally admitted or regarded as more incontrovertibly established than this, that love is the fulfilling of the law.

John Murray, Principles of Conduct, 21.