Whenever there is a prophecy of the second advent of a prophet, it means that another prophet will be raised in the spirit and power of the prophet sent earlier. Jesus himself explained this point in the case of Elijah:

“And his disciples asked him, saying, “Why then say the scribes that Elias must first corne?’ ‘But I say unto you, Elias is come already, and they knew him not, but have done him whatsoever they listed. Likewise shall the son of man suffer of them’.

“Then the disciples understood that he spake unto them of John the Baptist”. (Matthew 17:10-13)

Thus Jesus declared that the prophecy of the second advent of Elijah was fulfilled in the person of John the Baptist. In the same way the prophecy of the second advent of Jesus should be understood to imply that a holy person would be raised in the spirit and power of Jesus.