Westminster Confession of Faith
Chapter 29: Of the Lord’s Supper
2: In this sacrament, Christ is not offered up to His Father; nor any real sacrifice made at all, for remission of sins of the quick or dead;[540] but only a commemoration of that one offering up of Himself, by Himself, upon the cross, once for all: and a spiritual oblation of all possible praise unto God, for the same:[541] so that the popish sacrifice of the mass (as they call it) is most abominably injurious to Christ’s one, only sacrifice, the alone propitiation for all the sins of His elect.[542]
Daily Westminster 