Pāpīs, sinful men, they cannot understand. They understand, only think that "Kṛṣṇa is Bhagavān; so I am also Bhagavān. He's an ordinary man, maybe little powerful, historically very famous man. So He is, after all, a man. So I am also man. So why not I am God?" This is the conclusion of the abhaktas, non-devotees and sinful men.
So anyone who is declaring himself God, immediately you should know he is the greatest sinful man. And if you study his private life, you will see that he is number one sinful man. This is the test. Otherwise nobody will say that I am God, this false representation. Nobody. Any pious man will not do it. He knows, "What I am? I am ordinary human being. How can I claim to take the position of God?" And they become famous among rascals.