Faith pleases God and will sustain you through your life.
Mark 11:24 Therefore I say to you, what ever you need, when you pray, believe that you will receive them and you shall have them.
Ephesians 6:16 Above all taking the shield of faith, with which you will be able to quench all the fiery darts of the wicked one.
Hebrews 11:1,6 Faith is being sure of what we hope for and certain of what we do not see. But without faith it is impossible to please God. For when you come to God you must believe that he is, and that He is a rewarder of them that diligently seek Him.