This question ties together the all the other questions previously raised about doubt. Our focal passage (Jas 1:5-8) speaks nicely to this question. It says doubt prevents us from receiving blessings from the Lord. Doubt was defined as essentially the opposite (or absence) of faith. If one doubts God, he or she lacks faith and in fact is in a condition of unbelief. Without belief we cannot be saved (Jn 3:16) and we will act in disobedience (Heb 4:6). James says the doubter is double-minded and unstable. He’s essentially saying the doubter is wishy-washy and gullible. The doubter is a sucker. W. C. Fields is well known for saying, “There’s a sucker born every minute.” Sadly, he was right. To mature believers it should be critically important our obedience to our Lord reveal Him accurately to non-believers and believers who have doubt.
If you doubt and thus are unstable in your values, you will be easy prey for temptation. Temptation begets sin which begets death (Jas 1:14-15). Doubt is like the AIDS virus. It doesn’t kill directly, but makes you susceptible to death by common disease (common temptation).
This post is an excerpt (Question 6.15) from my book Ask James one.