"Faith is believing that Christ is what He is said to be, and that He will do what He has promised to do, and then to expect this of Him."
-- Charles H. Spurgeon, All of Grace
I find this quote to be very encouraging. So often in moments of doubt or decision I've had to take God's Word--what he has revealed about himself and what he declares he has done and will do for us in the new covenant in Christ (2 Corinthians 1:20)--and take it right back to him and hold him to it. And that gives me strength, because God is unshakeable, faithful, and true.