17. προσέχετε ἀπὸ τῶν ἀνθρώπων. Perhaps with a reference to the serpents and the doves, which shun the approach of men; but comp. ch. Mat 17:22, μέλλει ὁ υἱὸς τοῦ ἀνθρώπου παραδίδοσθαι εἰς χεῖρας ἀνθρώπων.
συνέδρια. i.e. provincial synagogue-tribunals. See note, ch. Mat 4:23.