Matthew 5:45-47

so that you may [show yourselves to] be the children of your Father who is in heaven; for He makes His sun rise on those who are evil and on those who are good, and makes the rain fall on the righteous [those who are morally upright] and the unrighteous [the unrepentant, those who oppose Him]. For if you love [only]those who love you, what reward do you have? Do not even the tax collectors do that? And if you greet only your brothers [wishing them God’s blessing and peace], what more [than others]are you doing? Do not even the Gentiles [who do not know the Lord] do that?