About how to treat our enemies in this world,
Luke 6:32-33 & 36 say it very well:
32 “If you love those who love you, what credit is that to you? Even sinners love those who love them.
33 And if you do good to those who are good to you, what credit is that to you? Even sinners do that.
36 Be merciful, just as your Father is merciful.