First of all, that's untrue, except in the sense that all of us need God's help. Jonah was told to go preach to Nineveh (Jon 1:2). There's was nothing inherently difficult in that request that a non-Jewish international businessman in that day could not have done.
Second, unless the man proves himself a prophet with miraculous signs (Ex 4:1-9; Ac 2:22), he is a false prophet prophesying out of this imagination (Ezk 13:2). Based on passages such as 1Cor 13:8-10, it appears all that prophesying and such ended long, long ago.
I recall watching TBN one time when a guest "prophet" was on Paul Crouch's show prophesy that the temple in Jerusalem would be built before the network founder died. He died and the temple still has yet to be rebuilt.
Better yet, Pat Robertson once predicted that God would punish Orlando with a major hurricane within a year of Disney openly supporting the gay movement. Orlando was never hit with a hurricane that year, but Virginia Beach, VA was--the home of Pat Robertson.
Let's just put it this way. If there was a true prophet of God out there, you wouldn't have to ask about him on YARS.