1. Faith without good works can't save someone because it's "dead" (v14-17).
2. Faith without good works is useless and absurd because the demons have faith that mentally asserts in God's monotheistic existence which produces nothing but fear (v. 18-20)
3. Abraham is cited as an example of being justified by works (v.21) in his offering of Isaac (Gen.22) and his faith was somehow completed by this work (v.22) thus confirming God's declaration of Abraham as righteous by faith in Gen. 15:6 (v.23).
4. James summarizes that a person is declared right by God because of works and faith (v.24)
5. Rahab is cited as an example as a person justified by works (v.25)
6. James concludes with a metaphor that compares a body apart from the spirit and faith without works, starting that both of these things are dead (v.26).
Conclusion- I believe that the main point of James 2:14-26 is to stress the importance of good works to Christians over and against the idea that a mental assertion of God's monotheistic existence is enough to get one saved.