{After the flesh} (kata sarka). The literal Israel, the
Jewish people, not the spiritual Israel (Isra(886c) kata pneuma)
composed of both Jews and Gentiles, the true children of faith
( Ro 2:28  9:8  Gal 3:7 ). {Communion with the altar} (koin(936e)oi
tou thusiast(8872)iou). Same idea in koin(936e)oi participators in,
partners in, sharers in (with objective genitive). The word
	husiast(8872)ion is from late verb 	husiaz(935c), to offer sacrifice,
and that from 	husia, sacrifice, and that from 	hu(935c), common
verb to slay, to sacrifice (verse  20 ). The Israelites who offer
sacrifices have a spiritual participation in the altar.