Is The Book Of James Not For Us?

If you don’t believe you are an Israelite, please stop teaching and preaching the book of James like it applies to you.
James 1:1 – James, a servant of God and of the Lord Jesus Christ, to the twelve tribes which are scattered abroad, greeting.
Stop listening to your preacher and read scripture for yourself. 
Jeremiah 50:6 – My people hath been lost sheep: their shepherds have caused them to go astray, they have turned them away on the mountains: they have gone from mountain to hill, they have forgotten their resting place.