To be a bit more specific, it's more like "UNTRUSTING believers" . . . .
It is oft said, "the demons believe . . . . It's not enough to just believe in Jesus Christ; you must also put your trust in Him."
This is quite an interesting situation--that one could believe in Jesus, as the demons or the devil do, and likewise not be saved . . . .
What's the difference? How can one claiming to believe in Jesus be saved, while another is not?
A couple of things . . . .
For one, WHICH Jesus? Muslims believe in Jesus . . . . So do Jehovah's Witnesses, Mormons, most Hindus and even a lot of so-called "atheist" scholars . . . .
But you will find that the big diving line between what they believe about Jesus and what the Bible teaches--between a saving conception of Jesus versus a heretical one . . . is that the cultish idea of Jesus is always something LESS than what He is . . . and denies that He was 100% fully man AND 100% fully God. [It is the TRUTH! which sets us fee--not some vague, twisted approximation, ie., "Jesus was a great mortal/moral philosopher" . . . or, "Jesus was the literal, sexually produced offspring of Heavenly Father."]
It is one thing to believe in a famous man who lived some 2000 years ago . . . .
It is quite another to believe in the LORD Jesus Christ who was a man AND God in the flesh . . . .
The other point is . . . that besides "believing" . . . . We must TRUST.
This is something I have really been delving into the past couple of years--deeply and authentically TRUSTING in Jesus alone--not self, not another, not the world . . . .
It is easy to say, "Oh yes, I believe and trust Jesus" . . . . But few there are who actually DO. I wonder if it is not the same "few" Jesus warns about when He says: "strait is the gate, and narrow is the way, which leads to life, and few there be that find it."
And the difference between those who thought they believed in Jesus, but to whom He says "And then will I profess to them, I never knew you: depart from me, you that work iniquity."
Because, "believing" . . . is one thing. TRUSTING in that belief, seems to be quite another.
And really, I don't see how one can claim to truly "believe" . . . but then refuse to "trust." If you believe, then you will want to obey; you will take to heart what He says and what God's Word says. If Paul says "I consider that our present sufferings are not worth comparing with the glory that will be revealed in us," then . . . we ought to TRULY believe him--which will produce a commensurate attitude of relative nonchalance concerning the trials and sufferings of this life . . . .
The big test of our trust and belief . . . is shown when we find ourselves worrying or fearing.
If He says in 1 John 4:18 that "there is no fear in love" . . . and we know that God is love . . . and if we believe and trust in God . . . THEN, when we worry and complain and effuse anxiousness . . . over the future or some immediate problem . . . it must show that we really DON'T believe and trust. Oh, maybe we can say we "believe" in some sense, like the demons believe, or like Muslims "believe" in Jesus . . . . But, we must not believe that God is sovereign and we must not actually trust Jesus to be the Lord of our life.
WE have other ideas . . . wants . . . strategies . . . agendas . . . and THESE we want to trust in. So, up rises fear, angst, worry . . . .
But I have found, through deliberate, attentive and ongoing practice, that, if we truly and honestly deep within PUT OUR FULL TRUST IN JESUS, worry and anxiety, fear and angst . . . disappear! And are replaced with a sweet, strong, holy and blessed assurance--a peace which "passeth understanding" . . . .
At least in myself, I grew so tired of reading certain scriptures, but not LIVING them, that I determined to seriously believe, trust and follow them/Him . . . not just give a vague, half-hearted lip-service.
The difference in understanding and life and peace and discernment . . . which has followed . . . is a "world of difference".
I dare say it is the difference between still living in and belonging to this (fallen) world . . . versus living in and belonging to the world of the Kingdom of God . . . .