Sorry that it has taken a little bit to get back to you.
Are you saying that if something turns out to be a “gloss”, we should remove it from the defined canon of Scripture?
The question is not so much that we should remove it from the canon, but that it was never part of the canon in the first place. This is precisely what the Sisto-Clementine Vulgate did after the Council of Trent. The original formulation at a Western council was at the Council of Rome in 281. The vast majority of ancient manuscripts of the Bible date from a very specific region to a very specific time (Alexandria; late 4th - early 5th century). It is only from these manuscripts 300+ years removed from Christ that we get this verse. One of the requirements for acceptance into the canon was direct apostolic influence. It is through this requirement that we receive Mark, Luke, the arrangement and last chapter of the Gospel of John, Acts, Hebrews, 3 John and Revelation. If the gloss wasn’t inserted into the text by a direct disciple of an Apostle, it falls outside of the realm of this authoritative requirement.
This is not to say that the verse is incorrect. It does, indeed, emphasize the meaning of the immediate preceding and proceeding texts. This is why it is used by Tim Staples within the context of apologetics. It is a good tool to be used in evangelization, but the jury is still out on whether or not it should be Public Revelation and used in liturgy or should be included with the positive Apocrypha of the Early Church, such as the
Didache, the
Shephard of Hermas, or the teachings of the Fathers such as the
Epistle of Clement to the Corinthians.
Before the Revised Edition of the New American Bible came out, verses which were debated to be glosses were noted by brackets in the text. The Vatican eventually stepped in and ordered the brackets removed, noting that they had not made a definite ruling upon them. Priests expected the official lectionary readings to be expanded to include 1 Cor 11:27, but the Vatican still withheld the verse. The Vatican explained that the potential glosses were to be included if they fell within the body of a reading but if they were at the beginning or end of a reading, they would remain unused. This could have only affected a few passages but they were already structured outside of the reading cycles after the revamp of the Lectionary post-Vatican II.