Matthew 5:46-48 New Revised Standard Version, Anglicised (NRSVA)
46 For if you love those who love you, what reward do you have? Do not even the tax-collectors do the same? 47 And if you greet only your brothers and sisters,[a] what more are you doing than others? Do not even the Gentiles do the same? 48 Be perfect, therefore, as your heavenly Father is perfect.