Matthew 21:21

διακριθῆτε. Passive form with meaning of middle voice; cp. ἀπεκρίθην. διακρίνειν, (1) lit. ‘to separate:’ (2) ‘to discern’ or ‘discriminate.’ See ch. Matthew 16:3, when it is used of discerning the face of the sky, and Acts 15:9, οὐδὲν διέκρινεν μεταξὺ ἡμῶν τε καὶ αὐτῶν. (3) In a judicial sense ‘to decide,’ and in middle to ‘get a question decided at law,’ ‘to litigate.’ (4) Hence generally ‘to dispute,’ διεκρίνοντο πρὸς αὐτὸν οἱ ἐκ περιτομῆς, Acts 11:2. (5) Thus ‘to dispute or question with oneself,’ ‘to doubt,’ as here and Romans 4:20, εἰς δὲ τὴν ἐπαγγελίαν τοῦ Θεοῦ οὐ διεκρίθη τῇ�; cp. Acts 10:20, where the context illustrates this passage. The last usage is not classical.