Bible Verses About unbelief

And Jesus said unto them, Because of your unbelief: for verily I say unto you, If ye have faith as a grain of mustard seed, ye shall say unto this mountain, Remove hence to yonder place; and it shall remove; and nothing shall be impossible unto you.

Jesus said unto him, If thou canst believe, all things are possible to him that believeth.

And straightway the father of the child cried out, and said with tears, Lord, I believe; help thou mine unbelief.

He staggered not at the promise of God through unbelief; but was strong in faith, giving glory to God;

For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:

Take heed, brethren, lest there be in any of you an evil heart of unbelief, in departing from the living God.

So we see that they could not enter in because of unbelief.

But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.

Love not the world, neither the things that are in the world. If any man love the world, the love of the Father is not in him.