2 Peter 1:16-20
For we have not followed cunningly devised fables, when we made known to you the power and coming of our Lord Jesus Christ…
Moral reasons are sufficient to guide men in the affairs of the present life. A man will embark on board a vessel which he only knows by the report of others to be seaworthy. He trusts to the skill of a captain and the effectiveness of a crew of whom he knows only by report. He embarks to go to a place which he only believes on the testimony of others to exist. All this he does to obtain a probable good. He acts similarly to escape an apprehended evil. When sick, he will send for a physician of whose skill he has only heard. He takes medicine which he does not certainly know will cure him. In these cases he acts reasonably. It is clear that when, in relation to the life to come, he refuses moral evidence, he acts unreasonably.
Parallel VersesKJV: For we have not followed cunningly devised fables, when we made known unto you the power and coming of our Lord Jesus Christ, but were eyewitnesses of his majesty.