There is little doubt whom wrote this Epistle James, a Servant of God and of the Lord Jesus Christ, although the New Testament mentions a few James’ this is clearly Jesus’ half brother who had become a leader of the Church in Jerusalem.
The overarching theme of the book is Faith but it has garnished much criticism over the years because James associates Faith with Works. A diligent Berean however should be able to distinguish that James is not say that works are required for Faith but that Faith naturally produces works.
Such is the case beginning in v.19 through to the end of the chapter including our text v.25 today. James is saying that a true Christians actions (works) are a good indicator of their underlying Faith, be doers of the word and not hearers only v.22.
What are you doing for the Kingdom today?