Once Saved, Always Saved REFUTED

Is Eternal Security Biblical? Once a person is saved, are they always saved? The answer is a resounding NO. the Bible is full of real warnings to hold fast to what they have, to endure to the end, to take heed, and to stand. These warnings make no sense if the danger is not real. The danger is very real and we need to be ready when our adversary comes as a roaring lion.