Mark 6:7

7AndκαὶHe calls nearπροσκαλεῖταιtheτοὺςTwelveδώδεκα,andκαὶHe beganἤρξατοthemαὐτοὺςto send forthἀποστέλλεινtwoδύο[by] twoδύο,andκαὶHe gaveἐδίδουto themαὐτοῖςauthorityἐξουσίανover theτῶνspiritsπνευμάτωντῶνuncleanἀκαθάρτων,

And He summons the Twelve, and He began to send them forth two [by] two, and He was giving to them authority over the unclean spirits.