To me, fearing God can't be looked at in the literal sense. IMO, fearing God is to know that "He is God and besides Him, there is no other". To fear God in the literally sense would go against His Word which clearly states in 2 Timothy 1:7 "For God hath not given us the spirit of fear; but of power, and of love, and of a sound mind". I think that fear God is to realize how great God really is. When you begin to read and understand who God really is and as God begin to reveal Himself to you, you will begin to fear Him but only because you will see how great He is. You will fear God when you understand who He really is. Also some of the ladies have already pointed out that it is to reverence Him which is also true.