2 Peter 1:12-16

Therefore, I will always remind you about these things—even though you already know them and are standing firm in the truth you have been taught. And it is only right that I should keep on reminding you as long as I live. For our Lord Jesus Christ has shown me that I must soon leave this earthly life, so I will work hard to make sure you always remember these things after I am gone. For we were not making up clever stories when we told you about the powerful coming of our Lord Jesus Christ. We saw his majestic splendor with our own eyes