The pastor at St Edward Catholic School claimed that according to exorcists, the spells and curses may lead to 'conjuring evil spirits' when read out.
Fans were quick to notice their comfort level and flooded the comments' section with monikers "Dramione" and "Feltson".
Fascination for the JK Rowling fantasy series remains unabated as fans go back to re-reading it and specially themed cafes come up
He published the apology late Tuesday on the Facebook page of a foundation he founded.
The post shows three priests carrying a basket of books and other items including an African-styled face mask through a church to an outside fire pit.
The actor said that though he was actually ignorant about the Harry Potter series, he played the role after his sister Martha convinced him to do so.
McKellen is proud to be loved by millions because of his portrayal of Gandalf from J.R.R Tolkien's books because it has allowed him the freedom to work on issues close to his heart.
He also said that "there is no blueprint" to deal with the pressures of "starting young".
While the 29-year-old actor said that someone else will definitely play the role in the future, he feels that there's a sacredness around the movies at the moment.
The university is mixing the magical world of Harry Potter into philosophy teachings. The class discusses ethics, logic, love, the human soul and nature while examining the stories.
The moment arrived in a scene between characters Samwell Tarly (John Bradley) and archmaester Marwyn, who is in charge of training him at the Citadel.
Author JK Rowling has revealed there were two different Harry Potters in the 'Harry Potter' franchise.