This was published by Stan Kegel on the groaners listserv.
A Jewish gentleman had a son who became a talkative New Age guru. After a while, his congregation, out of appreciation, bought a fancy new bench for their church, and he sat in it often, along with other worshippers.
One day the father decided that he wanted to visit his son, so he walked into the church, but the guru happened to be absent. Deciding to wait on the bench for his son’s return, he walked over to the fanciest bench in the church and said to the person sitting there: … “Pardon me goy, is that the chatty guru’s new pew?”