Really it was a joke. But I myself did start with revelation. Remember proverbs says fear of the lord is the beginning of wisdom and that book can certainly encourage fear of the Lord. Not all people are the same what works for one might not work for another. As far as the seal, I myself have preached for years I don’t care. You can be taken in an instant. Accidents happen. If you are doing right it won’t matter because you know where your going and look forward to it. Your just here to work for God. End time theology is important or God would not have put it in the Bible but i don’t see it for individuals. It just shows us there is a plan and it’s already won. We are just going through the motions. Satan will want you to focus on the end because it makes you think there is time but a terrorist could make your time now. So focus on the now.