1. Teach something that contradicts the Bible, because you like it better than the biblical teaching.
2. Keep doing it for a long time, and make disciples who will teach it when you’re gone, preferably for centuries.
3. When someone points out that the Bible is clear on that topic, and shows from Scripture how your teaching is in the wrong, deflect by pointing out that Christians have disagreed on it for centuries, so it obviously could not be very clear in the Bible.