Proverbs 3:5

Now faith is assurance of things hoped for, proof of things not seen.

Without faith it is impossible to be well pleasing to him, for he who comes to God must believe that he exists, and that he is a rewarder of those who seek him.

He said to them, “Because of your unbelief. For most certainly I tell you, if you have faith as a grain of mustard seed, you will tell this mountain, ‘Move from here to there,’ and it will move; and nothing will be impossible for you.

We know that all things work together for good for those who love God, to those who are called according to his purpose.

For God so loved the world, that he gave his one and only Son, that whoever believes in him should not perish, but have eternal life.