Title: The just shall live by faith
There is no other way by which a man may inherit eternal life but by faith, a gift from God through the body of truth which leads us to believe the good news that the Lord Jesus died to save us from our sins.  Therefore a man will live eternally because of that faith.
However, there is no justification to use faith as a ticket to bring everything to fruition.  We must not use it as a magic wand in the hope that every plan or desire would succeed, for that would be presumption, which is not faith at all.