43 “You have heard that it was said, ‘You shall love your neighbor and hate your enemy.’ 44 But I say to you, love your enemies, and pray for those who persecute you, 45 that you may be children of your heavenly Father, for he makes his sun rise on the bad and the good, and causes rain to fall on the just and the unjust. 46 For if you love those who love you, what recompense will you have? Do not the tax collectors[ab] do the same? 47 And if you greet your brothers only, what is unusual about that? Do not the pagans do the same?[ac] 48 So be perfect,[ad] just as your heavenly Father is perfect.
The Sermon on the Mount, as presented in Matthew Chapters 5, 6, and 7, is about divine morality the social architecture that God designed for the primate species and particularly humans. In these chapters, Jesus teaches what it means to live within God’s creation, in union with Him, what He calls the Kingdom of God. The Kingdom of God is what is what is achieved by living within divine morality, called tsedeq by the ancient Hebrews. The Sermon on the Mount reveals how God has designed human social architecture, inviting us to dwell within it according to divine morality. Jesus’s words guide us on how to live in harmony with God’s intentions, experience the grace that comes from such living, and understand the consequences when we fall short of this divine calling.