James:

This book was written as a letter to Jewish Christians, with advice to:

1. "Consider it pure joy...whenever you face trials...because...testing of your faith develops perseverance (i.e, persistence)." (James 1:2-3)
2. "...Everyone should be quick to listen, slow to speak and slow to become angry..." (James 1:19)
3. "...those who are poor in the eyes of the world...to be rich in faith and to inherit the kingdom..." (James 2:5)

Other advice: take care of orphans and widows; help others; prove you have faith by doing good works; don't brag; do not swear. And, some further points:

1. "...the tongue is a small part of the body, but it makes great boasts." (James 3:5)
2. "There is only One Lawgiver and Judge, the One Who is able to save and destroy...who are you to judge your neighbor?" (James 4:12)
3. "Let him know, that he which converteth the sinner from the error of his ways shall save a soul from death, and shall hide a multitude of sins. " (James 5:20, from King James' Version)