When Paul employs the motif of oneness in 1 Corinthians 12 and joins it to the metaphor of Christ's body, he is drawing not only on Greco-Roman political rhetoric, as argued by the majority of interpreters, but also, and at times more directly, from theological wells found within his Jewish theological heritage: the use of the phrase ‘one body’ in 1 Corinthians is an ecclesial application of the Shema. Paul's oneness language expresses not simply a call to internal unity or social harmony. Ultimately, the ecclesial designation ‘one’ is a succinct articulation of an ecclesiology of Christological monotheism.
