Joy Is a Fruit of Faith
“Joy may be thought of as an emotion, but for the Christian it is something more concrete. Christians will not be plunged into despair by the adversities of life when they cling to the joy they have in Christ. Paul rejoiced in what the Lord had done for his salvation while he was sitting in a jail cell at Rome (see his letter to the Philippians). Joy is what Peter offered the persecuted Christians of Asia Minor when, in his first epistle, he spoke to them of the inheritance we have guaranteed for us through Christ (1:6). Joy is what Christians have as they stand with tears in their eyes by the grave of a Christian loved one. They have their Savior’s promise of the resurrection of the body and eternal life with him in heaven. The Christian’s joy is not like the morning fog, soon dispersed by the heat of the sun. Our joy is lasting, enduring, undimmed by the trials of this life.”
Lange, Lyle W. Sanctification: Alive in Christ. Milwaukee: Northwestern Publishing House, 1999. Pages 133-134.