The Book of James was written around 49 AD by James, a leader in the very first Christian church, the Church of Jerusalem.
Members of the Jerusalem church had been removed from the city and spread out to other Roman provinces because of persecution. The letter aims to encourage them during these difficult times. James explains to them that their faith will change not only their conduct but also their character. He gives his readers several tests against which they can measure their faith in Christ. If a Christian fails these tests then their faith is dead.
James 3:16-18
"For where envying and strife is, there is confusion and every evil work. But the wisdom that is from above is first pure, then peaceable, gentle, and easy to be intreated, full of mercy and good fruits, without partiality, and without hypocrisy. And the fruit of righteousness is sown in peace of them that make peace"