1CO 10:16

16 The Kos HaBracha [(Cup of Blessing)] over which we say the Bracha, is it not a [[Mizbe'ach]] sharing and deveykus participation in the Korban Pesach death and kapporah of Moshiach? The matzoh which we break, is this not a sharing and a deveykus participation in the Guf HaMoshiach?