So if you trust Cyril got it right on the canon of scripture (or close), then you should trust his Words below on the Eucharist:
No, because I’m no longer Catholic & my authority isn’t the ECF’s, since the ECF’s disagreed about many doctrinal issues…including the canon of Scripture. Rather, it my authority IS Scripture. My point of bringing up earlier ECF’s wasn’t to legitimize “everything” they believed, but to point out that the 27 NT books were recognized as Inspired Scripture long before the Councils in the late 4th Century were convened (see below).
Paul is speaking of the Old Testament in this verse as the proceeding verses he is talking of the scriptures that they have known since childhood.
14 But you must continue in the things which you have learned and been assured of, knowing from whom you have learned them, 15 and that from childhood you have known the Holy Scriptures, which are able to make you wise for salvation through faith which is in Christ Jesus.
No he is referring back to Deuteronomy 25:4. Again, the Old Testament.
1 Timothy 5:18
18 for the scripture says, “You shall not muzzle an ox when it is treading out the grain,” and, “The laborer deserves his wages.”
Deut 25:4
“You shall not muzzle an ox when it treads out the grain.
Yes, he’s referring to the OT, but the point I was making that you missed was that Paul says that
ALL Scripture is Inspired (God-breathed), & that Peter affirmed that
ALL of Paul’s epistles were
Scripture:
“and regard the patience of our Lord as salvation; just as also our beloved brother
Paul, according to the wisdom given him,
wrote to you, as also in all his letters, speaking in them of these things, in which are some things hard to understand, which the untaught and unstable distort,
as they do also the rest of the Scriptures, to their own destruction.” (2 Peter 3:15-16)
Peter is affirming that
ALL Paul’s epistles are
SCRIPTURE. So, they are just as God-breathed as the OT
Scriptures. Also, when Paul quotes Luke 10:7, he not only quotes Deuteronomy 25:4, but also Luke 10:7 & calls it
Scripture:
“For the Scripture says, 'YOU SHALL NOT MUZZLE THE OX WHILE HE IS THRESHING,” and “
The laborer is worthy of his wages.” (1 Timothy 5:18)
“Stay in that house, eating and drinking what they give you; for
the laborer is worthy of his wages. Do not keep moving from house to house.” (Luke 10:7)
Notice, Deuteronomy 25:4 does not say “the laborer is worthy of his wages,” but rather Luke 10:7 states that which Paul quotes & also calls
Scripture. So, since Paul states that
ALL Scripture is Inspired (God-breathed), although he is “initially” referring to the OT Scriptures in 2 Timothy 3:15, “
Scripture” refers also to ALL of Paul’s epistles, since Peter calls ALL of Paul’s epistles
Scripture, & Paul quotes the Gospel of Luke & calls “it”
Scripture too. Luke also penned Acts, which a continuation of Luke, & Luke even admits to getting his information for His “God-breathed
Scripture” from eyewitnesses, which would include Matthew & Mark, which is obvious since they contain many of the same events, & were written prior to or contemporary with Luke’s Gospel.
So, like I said before, by mid-FIRST Century, most of the NT canon was recognized by the Christian Church as being just as much of God-breathed
Scripture as the OT.
Go back to your sources and provide link that clearly lists a canon of scripture prior to 382 ad that matches what you have today.
Unfortunately, most of them are from Protestant sources. Posting them would violate forum rules & cause me to receive an infraction (convenient)
Interesting though that you keep referring to this Church that determined scripture. We Catholics agree with that part. We can also read - from the same people that wrote, guarded and copied the New Testament scripture, how they referred to this Church. St. Ignatius was an ECF and a disciple of St. John (who himself wrote scripture.

)
I didn’t say the (Catholic) church “determined” Scripture. I was referring to the early Christian writers who were Jewish, who wrote most of the NT (the exception being Luke).
It’s very inconsistent to trust this Catholic Church on determining Scripture (inerrant it was in doing so) but reject its teaching on faith and morals.
This is a completely different issue than what we’re talking about, as well as the OP, which is about Mary’s virginal status after the birth of Jesus, which we seem to have deviated from. The point is, since both Catholics & Protestants believe the Bible - OT & NT - is God-breathed (just not for all the same reasons), then the question is, does God-breathed Scripture support Mary’s perpetual virginity? And the answer is “no,” nor does it affirm that Mary & her husband Joseph did not have sexual relations after the birth of Jesus & have children together during their marriage. Even Eusebius & earlier ECF’s & historians that he quotes seem to believe that they did.