not to exclude the truth of Christ's body, but that it was not
to be eaten in this species in which it was seen by them. And by the
words: "It is a mystery that I put before you; in its spiritual sense
it will quicken you," he intends not that the body of Christ is in
this sacrament merely according to mystical signification, but
"spiritually," that is, invisibly, and by the power of the spirit.
Hence (Tract. xxvii), expounding John 6:64: "the flesh profiteth
nothing," he says: "Yea, but as they understood it, for they
understood that the flesh was to be eaten as it is divided piecemeal
in a dead body, or as sold in the shambles, not as it is quickened by
the spirit . . . Let the spirit draw nigh to the flesh . . . then the
flesh profiteth very much: for if the flesh profiteth nothing, the
Word had not been made flesh, that It might dwell among us."

Reply Obj. 2: That saying of Augustine and all others like it are to
be understood of Christ's body as it is beheld in its proper species;
according as our Lord Himself says (Matt. 26:11): "But Me you have
not always." Nevertheless He is invisibly under the species of this
sacrament, wherever this sacrament is performed.

Reply Obj. 3: Christ's body is not in this sacrament in the same way
as a body is in a place, which by its dimensions is commensurate with
the place; but in a special manner which is proper to this sacrament.
Hence we say that Christ's body is upon many altars, not as in
different places, but "sacramentally": and thereby we do not
understand that Christ is there only as in a sign, although a
sacrament is a kind of sign; but that Christ's body is here after a
fashion proper to this sacrament, as stated above.

Reply Obj. 4: This argument holds good of Christ's bodily presence,
as He is present after the manner of a body, that is, as it is in its
visible appearance, but not as it is spiritually, that is, invisibly,
after the manner and by the virtue of the spirit. Hence Augustine
(Tract. xxvii in Joan.) says: "If thou hast understood" Christ's
words spiritually concerning His flesh, "they are spirit and life to
thee; if thou hast understood them carnally, they are also spirit and
life, but not to thee."
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SECOND ARTICLE [III, Q. 75, Art. 2]

Whether in This Sacrament the Substance of the Bread and Wine Remains
After the Consecration?

Objection 1: It seems that the substance of the bread and wine does
remain in this sacrament a