The Book of Job.
Part and parcel of the Christian’s faith is the conviction that God Himself is enough to satisfy him. How can we tell whether we really trust God or merely say we trust Him while selfishly trusting the things that He gives us? The distinction becomes apparent when God separates us from earthly blessings. We become aware of the difference between being satisfied in Him and satisfied in His blessings.
Father, let me satisfy myself in You. That I may desire You rather than the things You give me.