For what saith the scripture? Abraham believed God and it was counted unto him for righteousness. Now to him that worketh is the reward not reckoned of grace, but of debt, but to him that worketh not but believeth on him that justifieth the ungodly, his faith is counted for righteousness (Rom.4:3-5)
James 2 is speaking of showing what you believe by works, not works contributing to salvation.
That's not all James is saying. He says that one is not saved by faith ALONE. Thus, your theology is in opposition to the Bible itself!
What shall it profit, my brethren, if a man say he hath faith, but hath not works? Shall faith be able to save him? James 2:14
So faith also, if it have not works, is dead in itself. James 2:17
But wilt thou know, O vain man, that faith without works is dead? James 2:20
For even as the body without the spirit is dead; so also faith without works is dead. James 2:26
How can someone deny that faith alone does not save? It is right there! We are not saved by faith without works. Simple as that.
Regards