It's in the Bible.No, I don't understand because you're completely wrong so there is nothing there to be understood. But I would expect that kind of absurd reply from you. FYI God wrote the rest of that verse, with the "it is" included in it. He also wrote the next verse too. Must be nice to be able to rearrange Scripture to satisfy your preferences. Not all of us would try that - given that it was ALL written by God.
That means if you choose not to imply that IF shows us that Paul is no way making a disclaimer but stating a proposition it can only mean you are willing to change what God says so it says what you want which is not Godly at all.