I think because we so often use certain terms in certain ways in the Christian church, we think that they always mean that and have always meant that in different ways. So, for instance, we'll use the term justification, and by justification we often and rightly mean in our systematic theology that one has been reckoned righteous by the imputation, or by the giving to us of the righteousness of Christian. And if we read James' discussion of justification of faith and works in that light, we will misunderstand what he means. And so, what we need to recognize is that the term justification in the Bible has several different senses, and one is just that, the idea of reckoning one person's righteousness to another, receiving a righteousness that is not ours. But another meaning of justification is a meaning that indicates that our actions at the end of the day show that we are indeed a follower of God, that we are faithful to him. And so, when he's concerned about justification, he's often concerned more about that notion of our actions displaying a faith — and he's not trying to say that our works themselves save, but the faith that shows itself in works receives the gracious work of God and thus receives justification.