The words in James’ letter can come across as fairly harsh and directive in nature. The letter has been said to not display an over abundance of grace.
The overall thrust of what James is saying wants to challenge the notion that we can believe in something without it having any tangible impact on the way we live our life. James want us to realise that faith has impact in the real world (not only in your heart and thoughts - but also in your decisions and actions).
James reminds us that receiving God’s love is not simply about soaking up that love. It is also experience the more fully in practical sharing of that love.