Therefore repent, or else, I will come quickly and contend with such men with words that will cut like a sword.

But I say to the rest of you at Thyatira--all who do not accept such teaching, whose who did not learn 'the secrets of Satan,' as men call them--I am not laying on you any further burden;

There followed 'flashes of lightning, cries, and peals of thunder'; and there was a great earthquake, such as had not occurred since man began to be upon the earth--none so great;