I don’t know anyone that desires to be a fool. We all desire to be wise. And as Christians we desire to have a particular spiritual insight that aids us in making right decisions and avoiding those things that we ought not be involved in.
James is consistently concerned that the way we live our lives contradicts what we claim to believe about God and Jesus Christ. Thus, at the end of chapter 3 he is concerned that we do not turn to the God we claim to worship for wisdom but instead turn to the ways of the world. James then gives us a roadmap for getting the "good stuff" – the wisdom that comes from above.
First, James says that we must be humble and meek. James wants us to come to terms with the fact that we are helpless without God. God is infinitely more powerful, knowledgeable, and good than we could ever imagine to be.
Second and closely related to the first, James says that we must understand that all good things come from above, including wisdom. If we want to be wise, we cannot look around us at the world, but must gaze upward to God.
And finally, once we humbly recognize that true wisdom only comes from above, we must begin the arduous task of receiving God’s wisdom. While we never fully experience the fullness of God’s wisdom, we seek to move in that direction by lessening our personal sinfulness and creating more room for God’s goodness. We do this through preparation. We spend time studying God’s Word, conversing with God through prayer, and living authentically amongst one another in Christian fellowship. Slowly we develop greater wisdom that is evident in our decision making. God’s will becomes increasingly obvious to us. Our habit is to respond to God’s voice. We are in tune with the Holy Spirit working in and through us. God’s wisdom becomes our own and others then find God in what we say and what we do.