James explained that faith was important because without it “he who doubts is like a wave of the sea, blown and tossed by the wind. That man should not think he will receive anything from the Lord; he is a double-minded man, unstable in all he does.” (NIV, James 1:6–8)

Also, James explained that faith without works was not really faith at all. James wrote, “What good is it, my brothers and sisters, if you say you have faith but do not have works? Can faith save you? If a brother or sister is naked and lacks daily food, and one of you says to them, ‘Go in peace; keep warm and eat your fill,’ and yet you do not supply their bodily needs, what is the good of that? So faith by itself, if it has no works, is dead.” (NRSV, James 2:14–17) James pointed out that even “demons believe—and shudder.” (NRSV, James 2:19)