TSK · John 1:21

Behold, I will send you Elijah the prophet before the great and terrible day of Jehovah come.

And if ye are willing to receive [it], this is Elijah, that is to come.

And his disciples asked him, saying, Why then say the scribes that Elijah must first come?

And they asked him, and said unto him, Why then baptizest thou, if thou art not the Christ, neither Elijah, neither the prophet?