Some people, interpreting the Qur'an with superstition, will oppose Hazrat Mahdi (as) when he comes

Fazl bin Yesar says, I heard ImamJaffarSadik say; "The truth is that when our Qaim (Hazrat Mahdi (as)) appears, he will encounter even worse treatment than thatRasulullah (saas) experienced from the people in the time of ignorance.” I asked, “How will that be?”

He said: "When Rasulullah (saas) came, people worshiped stones, and bits of rock and wood. BUT WHEN OUR QAIM (HAZRAT MAHDI (AS)) COMES PEOPLE WILL INTERPRET THE BOOK OF ALLAH ACCORDING TO THEIR OWN IDEAS AND WILL POINT TO THAT AS EVIDENCE." He then said: "Thanks be to Allah that in the same way that heat and cold enter their homes, so his justice will enter their homes.” (Sheikh Muhammad ibn Ibrahim Nomani, al-Ghaybah al-Nomani, p. 350)