James tells us this. A double-minded man is a believer. He has a mind split if he is double-minded and a single mind if he is whole-hearted towards God. It’s easy to tell. A double mind does both godly things and ungodly. He just manages it all. He is seen indulging the bad and suppressing the good. He will deny himself good things God has given to him to enjoy and think he does good in doing so. He thinks that if he does not partake of the good God has given then he is permitted to partake of the evil things his flesh likes…and he does it.