What is faith?  

Hebrews 11:1,2 Now faith is the substance of things hoped for, the evidence of things not seen.For by it the elders obtained a good report.

3 Through faith we understand that the worlds were framed by the word of God, so that things which are seen were not made of things which do appear.

5 By faith Enoch was translated that he should not see death; and was not found, because God had translated him: for before his translation he had this testimony, that he pleased God.

6 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.

7 By faith Noah, being warned of God of things not seen as yet, moved with fear, prepared an ark to the saving of his house; by the which he condemned the world, and became heir of the righteousness which is by faith.
8 By faith Abraham, when he was called to go out into a place which he should after receive for an inheritance, obeyed; and he went out, not knowing whither he went.

9 By faith he sojourned in the land of promise, as in a strange country, dwelling in tabernacles with Isaac and Jacob, the heirs with him of the same promise:

10 For he looked for a city which hath foundations, whose builder and maker is God.

11 Through faith also Sara herself received strength to conceive seed, and was delivered of a child when she was past age, because she judged him faithful who had promised.
 

Roman’s tells us that every person is given a measure of faith: