We are not aware that Jesus had any formal training. So, people questioned his ability to understand anything related to the sacred writings, much less teach them to others.
He had no formal endorsement from the religious establishment. In fact, they were hostile to him and took every opportunity to discredit his teachings. People claimed he was mentally ill. Even members of his family thought something was a little bit off.
With all these things against him, how is it that Jesus was, and continues to be, such a great teacher?
