Looking at the heroes of the faith listed in Hebrews chapter 11, they all have one thing is common.  Each one acted on what they heard God say.  They acted on what God tells them to do.  James 2:20 says 

But are you willing to recognize, you foolish fellow, that faith without works is useless.

All the Heros of the faith had actions that accompanied what they believed and heard from God.  You have no doubt they believe in God because their actions showed they believed and followed God exclusively.  James continues to emphasis the importance of having our faith demonstrated by good works.  Abraham had faith that was accompanied by works.  James 2:22 says;

 You see that faith was active together with his works, and by works, faith was made complete,

Now let’s settle one misconception right away, we cannot claim good works as a proof for salvation.  We cannot work for our salvation.  Christ did the perfect work for our salvation by paying the price for our redemption by dying on the cross.  

But since salvation has been purchased for us and is offered to us as a free gift, we are able to do good works because we are saved through faith.  Through Christ we can now do the good works that God has prepared for us to do in Him and for Him.  

Faith must always be accompanied by action.   It’s impossible for words alone to show you have faith.  Works (God honoring actions) show you have faith.  What does God want from your faith?  Good works, actions.