When we attempt to make Scripture say other than what it says, we are on extremely dangerous ground. And as the gospel is an integral part of the whole message of the written Word of God, when one adds to or takes away from it in whatever fashion, hence, making it "another gospel", in the words of the KJV, one has added to, or taken away from "the whole counsel of God".
One more, I'll say it, and put it another way. We both misuse and abuse, God and his word, whether we "rip the heart of the Divine God out of the Bible", or "fill the Bible full of the heart of fallen man"! And that goes for "in the whole" or "in the part".
