In 1 Cor 10.14–22 Paul warns his readers to refrain from idolatry. In order to convince his readers he calls attention to the unity and solidarity which exist between worshippers of the same religion. In this context he uses the terms κοινωνία and κοινωνός (vv. 16, 18, and 20). In v. 17 Paul tells his readers that at their joint meals they are ‘partners’, this time expressed by the term μετέχειν. In the light of ancient parallels, it is concluded that the references to κοινωνία in v. 16 (cf. vv. 18 and 20) should be understood ecclesiologically, denoting ‘partnership’ rather than ‘participation’.