Originally Posted by Ron

This is an interesting question.
One thing I am thinking right now is that God through his great commission has given unto us the command to go into the whole world and preach the Gospel to every creature.

Another thing is this, their may be times, or seasons when an area may be ripe for revival, more than at other times.

A man of God may go somewhere and not see any fruit of his labours, but then leave.
Some other man may come after him and build a great work.