You have hear that it was said: Love your neighbor and do not do good to your enemy. But this I tell you: love you your enemies, and pray for those who persecute you, so that you may be children of your Father in Heaven. For he makes his sun rise on both the wicked and the good. and he gives rain to both the just and the unjust.
If you love those who love you, what a special about that? Do not even the pagans do as much? As for you, be perfect as your heavenly Father is perfect.