This from William Gurnall:
Faith, then, becomes active when it rests on Christ crucified for pardon and life. There are many acts of the soul which must precede this, for a person can never truly exercise this faith unless he first has knowledge of Christ and relies on His authority. Only then can he say, “I know whom I have believed” (2 Timothy 1:12). Most people are reluctant to trust a complete stranger. Abraham did not know where he was going, but he knew with whom he was going! God worked with Abraham to teach him the knowledge of His own glorious self—who He was—so that His child could rely on His word, assenting to the truth of it no matter how harsh and improbable and impossible it seemed. “I am the Almighty God; walk before me, and be thou perfect” (Genesis 17:1).
Wherever your journey takes you today in the life of faith, you may not know where you are going, but as a child of God you know with whom you are going. Be strong and courageous!