Matthew 5:46-48

5:46 For if you love those who love you, what reward do you have? Even the tax collectors ¹  do the same, don’t they? 5:47 And if you only greet your brothers, what more do you do? Even the Gentiles do the same, don’t they? 5:48 So then, be perfect, as your heavenly Father is perfect. ² 

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¹ sn The tax collectors would bid to collect taxes for the Roman government and then add a surcharge, which they kept. Since tax collectors worked for Rome, they were viewed as traitors to their own people and were not well liked.

² sn This remark echoes the more common OT statements like Lev 19:2 or Deut 18:13: “you must be holy as I am holy.”