There are two parts to faith:

That God is (Genesis 1:1

God is a rewarder (Matthew 16:8-10

Without faith it is impossible to please God. (Hebrews 11:5-6

Without faith, sin reigns (John 16:8-9

Without faith, prayers go unanswered (Mark 11:24

Without faith, good (and great) things become impossible (Hebrews 11:5-6

Without faith, there is no courage (II Peter 1:5

Without faith, there is no basis for hope (Hebrews 11:6