For therein is the righteousness of God revealed from faith to faith: as it is written, The just shall live by faith.
Romans 1:17 (KJV)
The just are called to live by faith. Living by faith means we agree with what God has said about us, we believe the promises of God for our lives. We purpose in our hearts that we will not be moved by what we can see in the natural or feel in our emotions, but that we will be moved only by the Word of God! Faith enables what is true about us in Christ to manifest in our day to day lives.