Wonderful message ! Relating to 1 John 5:7
The debate stems from the fact that the Comma Johanneum is completely absent in every Greek manuscript for virtually all of church history, appearing only in the late middle-ages in very few copies, mostly added in the margins of copies that did not originally contain the reading. The Comma was, however, present in copies of the Latin Vulgate throughout the middle ages. In the few places that the Comma does finally arrive in any Greek documents, it seems to have been transferred there from the Latin. As Dr. Daniel Wallace observes:
“There is no sure evidence of this reading in any Greek manuscript until the 1500s; each such reading was apparently composed after Erasmus’ Greek NT was published in 1516.
the reading appears in no Greek witness of any kind either manuscript, patristic, or Greek translation of some other version until AD 1215 in a Greek translation of the Acts of the Lateran Council, a work originally written in Latin.
We can’t use this verse in apologetics because of consistency to our own case