The Testimony of the Witnesses

These are, at least to my estimation; the most difficult portions of 1st John to try and expound. It is difficult because there is no clear or very strong proofs as to what John is referring to when he speaks of the water and the blood. Secondly, anyone with any serious amount of study will quickly discover that VS 7 is one of the most hotly debated verses in all of Holy Writ. Does it belong in the Bible? Was it given by Holy Spirit Inspiration? Why is it in some versions and not others?
I share my opinion as well as some historical facts concerning the difficulties that are there.
Having said all that...there are some witnesses that may be called upon and relied upon concerning the matter of Jesus of Nazareth.