That can be a wide variety of things, but what I believe is the very words of Christ for what He has already spoken, undefiled by that of what others interpretations are. One Lord, one faith one Baptism = one gospel of grace.
1 John 2:27 But the anointing which ye have received of him abideth in you, and ye need not that any man teach you: but as the same anointing teacheth you of all things, and is truth, and is no lie, and even as it hath taught you, ye shall abide in him.