Deuteronomy 1:30

The Lord your God, who goes before you, He will fight for you, according to all He did for you in Egypt before your eyes. 

How many of us even though we are born again struggle with an Egypt from our past?  The Lord has showed Himself mightily in our lives yet we struggle with a sin or stronghold that hangs on.  We need to pray for revelation from the word as we study the bible so we can break the stronghold.  Knowledge given to us by God will remove any doubts and fears the devil places in our minds.  The truth will make us free.