Of Course I'm Doing The Will of God
The thinking of many believers today is, "If I do good things, then I am doing the will of God...because the will of God is for me to do good things - right?!" We trust that the good works that we do as Christians are and must be the will of God. We say, "I have faith that I am doing what God wants me to do." And if we're not doing "bad" things then we are also doing God's will. As Christians, we can think the "calling of God" is somehow inherent or naturally "built in" to whatever we do for Him or do "in His name." It is very hard to see how this type of thinking is carnal (or proceeds from being carnally minded.)
Nevertheless, the truth remains that you and I need to know the will of God if we are to do the will of God. This will never happen when we are carnally minded.