Whenever God says that he will do something, the devil always tries to do the same thing. The reason he does this is so that those who worship God will have the option of choosing his mission over God's, and will thereby mistakenly choose his mission. It is easy to choose the devil's mission because it always seems to be easier and more practical. It also always involves taking care of yourself first and foremost, and sometimes exclusively.
There are several unique characteristics about a mission from God that enables you to distinguish it from the devil's mission. God's mission always will be secret until the time comes for it to be revealed, it always will involve giving of yourself to accomplish the mission, and it always will lead you toward eternity.
The Lord God Almighty El Shaddai