"By faith Noah, being warned by God concerning events as yet unseen, in reverent fear constructed an ark for the saving of his household. By this, he condemned the world and became an heir of the righteousness that comes by faith" (Hebrews 11:7, ESV).
 
All people live by faith in something, and faith is only as good as the object it's placed in.
 
In Hebrews 11, we learn about men and women who placed their faith in the one and only true God. We read about how they demonstrated the kind of faith that honors God as He worked in their lives.  The object of biblical faith is God, and the response of biblical faith is obedience to God and His Word.