ἀνήρ τῷ ἀδελφῷ αὐτοῦ προσκολληθήσεται → a man cleaves each to his fellow, each to one's fellow
of one's own free will: use adj., P. and V. ἑκών, αὐτεπάγγελτος, ἐθελοντής (Soph., Ajax 24), P. ἑκώνγε εἶναι.