WRONG.
Here are your fellow PROTESTANTS disagreeing with you.
Take special note of the definition in RED . . .
EPIGNOSIS
Vine's Greek New Testment Dictionary
C2. Know, Known, Knowledge, Unknown [Noun] epignosis akin to epiginosko, denotes "exact or full knowledge, discernment, recognition," and is a strengthened form of gnosis, expressing a fuller or a full "knowledge," a greater participation by the "knower" in the object "known," thus more powerfully influencing him. It is not found in the Gospels and Acts. Paul uses it 15 times (16 if Heb 10:26 is included) out of the 20 occurrences; Peter 4 times, all in his 2nd Epistle. Contrast Rom. 1:28 (epignosis) with the simple verb in Rom 1:21. "In all the four Epistles of the first Roman captivity it is an element in the Apostle's opening prayer for his correspondents' well-being, Php 1:9; Eph 1:17; Col 1:9; Php 1:6" (Lightfoot).
Thayer's Greek Lexicon:
epignōsis
1) precise and correct knowledge
1a) used in the NT of the knowledge of things ethical and divine
Strong's #1922: epignosis (pronounced ep-ig'-no-sis)
from 1921; recognition, i.e. full discernment, acknowledgement:--(ac-)knowledge(-ing, - ment).
R. H. Strachan, "The Second Epistle General of Peter," The Expositor's Greek Testament, W. Robertson Nicoll, editor (Grand Rapids: Wm.B. Eerdmans, 1951), V, 127. ans 1: 9. Citing Chrysostom, Justin Martyr, and 1 Corinthians 13: 12, he concludes:
“The compound epignosis is an advance upon gnosis, denoting a larger, more thorough knowledge ... Hence also epignosis is used especially of the knowledge of God and of Christ, as being the perfection of knowledge.”6
John Macarthur (The Master’s Seminary Journal)
Gnosis gives place to epignosis—faith to rational conviction— and we rest in the joyful and unshaken certainty that we possess a Bible written by the hands of man indeed, but also graven with the finger of God.
The Doctrine of Epignosis (Wenstrom Ministries)
A. The noun epignosis comes from the ginosko word group:
1. Ginosko (ginwskw) (verb), “to know personally, intimately and experientially.”
2. Gnosis (gnosi$) (noun), “knowledge that is the intelligent comprehension but is not personal and experiential.”
3. Epignosis (epignosiv$) (noun), “intimate, personal, experiential knowledge.”
D. Quoting Culverwell, he writes, “Epignosis and gnosis differ. Epignosis is the complete comprehension after the first knowledge (gnosin) of a matter. It is bringing me better acquainted with a thing I knew before; a more exact viewing of an object that I saw before afar off. That little portion of knowledge which we had here shall be much improved, our eye shall be raised to see the things more strongly and clearly” (Synonyms of the New Testament, page 300).
E. He goes on to say on the same page, “All Paul’s uses of epignosis justify and bear out this distinction. This same intensive use of epignosis is confirmed by similar passages in the New Testament and in the Septuagint. It also was recognized by the Greek fathers. Thus Chrysostom stated: ‘You knew (egnote), but it is necessary to know thoroughly (epignonai).”
M. Exegetical Dictionary of the New Testament, volume 2, page 25:
1. Knowledge as recognition of the will of God that is effective in the conduct of the one who knows God
2. CHRISTIAN FAITH
N. Epignosis … in the Greek New Testament:
2. Experiential knowledge (of God and Christ).