'Teaching Of Christ' in the Bible

{Joh 7:538:12: This passage is omitted as ungenuine by Tischendorf and most critical editors of the Greek Testament. It is found in some manuscripts, but not in the most ancient. It is, however, very generally regarded as a genuine relic of the teaching of Christ, though not forming a part of the fourth Gospel. I give it in the text of Tregelles, omitting the words which he incloses in brackets. Tregelles, however, does not suppose it to be genuine.} [And they went each to his house;

So faith comes from a message heard, and the message comes from the teaching of Christ.

For this was not the teaching of Christ which was given to you;

Now the Holy Spirit specifically says that in later times [Note: "Later times" in the New Testament usually refers to the period following the first coming of Christ and the establishment of the church], some people will fall away from the faith [i.e., the true teaching of Christianity]. They will pay attention to deceitful spirits [i.e., lying people] and the teaching of evil spirits.

Whosoever goeth onward and abideth not in the teaching of Christ, hath not God: he that abideth in the teaching, the same hath both the Father and the Son.

Dearly loved ones, as I was very eagerly planning to write to you about the salvation we share in common, I felt it necessary [instead] to write urging you to contend earnestly for the faith [i.e., the teaching of Christ] which was once and for all delivered [by the apostles, See verse 17] to the saints [i.e., God's holy people].