James, like all of the general epistles except Hebrews, is named after its author

James wrote with the authority of one who had personally seen the resurrected Christ (1 Cor. 15:7), who was recognized as an associate of the apostles (Gal. 1:19), and who was the leader of the Jerusalem church.

James most likely wrote this epistle to believers scattered (1:1) as a result of the unrest recorded in Acts 12 (ca. A.D. 44). There is no mention of the Council of Jerusalem described in Acts 15 (ca. A.D. 49), which would be expected if that Council had already taken place. Therefore, James can be reliably dated ca. A.D. 44–49, making it the earliest written book of the NT canon.

James, with its devotion to direct, pungent statements on wise living, is reminiscent of the book of Proverbs. It has a practical emphasis, stressing not theoretical knowledge, but godly behavior. James wrote with a passionate desire for his readers to be uncompromisingly obedient to the Word of God. He used at least 30 references to nature (e.g., “wave of the sea” [1:6]; “reptile” [3:7]; and “heaven gave rain” [5:18]), as befits one who spent a great deal of time outdoors. He complements Paul’s emphasis on justification by faith with his own emphasis on spiritual fruitfulness demonstrating true faith.