John Behr

“As Maximus explains in Ad Thalassium 64, each law has its own proper discipline (ἀγωγή) and its own place within the gospel of Jesus. The natural law trains us in the basic solidarity and single-mindedness appropriate to individual human beings who share a common nature; it is enshrined in Jesus’s Golden Rule (Mt 7:12; Lk 6:31). The scriptural law leads to a higher discipline wherein human beings are motivated no longer by the mere fear of divine punishment but by a deep-seated embrace of the principle of mutual love. “For the law of nature,” writes Maximus, “consists in natural reason assuming control of the senses, while the scriptural law, or the fulfillment of the scriptural law, consists in the natural reason acquiring a spiritual desire conducive to a relation of mutuality ith others of the same human nature.”44 The essence of the scriptural law is thus summarized in Jesus’s dictum Love your neighbor as yourself (Lev 19:18; Mt 5:43; 19:19; 22:39; Mk 12:31). Finally, the spiritual law, or law of grace, leads humanity to the ultimate imitation of the love of Christ demonstrated in the incarnation, a love which raises us to the level of loving others even above ourselves, a sure sign of the radical grace of deification. It is enshrined in Jesus’s teaching that There is no greater love than this, that a man lay down his life for his friend (Jn 15:13).”
― John Behr, On the Cosmic Mystery of Jesus Christ