1 John 4:20

20Ifἐάνanyoneτιςshould sayεἴπῃὅτιI loveἈγαπῶτὸνGodθεόν,andκαὶtheτὸνbrotherἀδελφὸνof himαὐτοῦshould hateμισῇ,a liarψεύστηςhe isἐστίν·The [one]ὁforγὰρnotμὴlovingἀγαπῶνtheτὸνbrotherἀδελφὸνof himαὐτοῦwhomὃνhe has seenἑώρακεν,τὸνGodθεὸνwhomὃνnotοὐχhe has seenἑώρακενnotοὐis he ableδύναταιto loveἀγαπᾶν.

If anyone should say, “I love God,” and should hate his brother, he is a liar. For the one not loving his brother, whom he has seen, is not able to love God, whom he has not seen.