James 1:5--written primarily for Joseph Smith (Maxwell)
According to Elder Maxwell, James wrote his famous verses first and foremost for Joseph Smith--it was all part of the Divine Plan leading up to the Restoration:
"We know of Joseph Smith's special experience in reading James 1:5, 'Never did any passage of scripture come with more power to the heart of man than this did at this time to mine. It seemed to enter with great force into every feeling of my heart (JSH 1:12).' James was inspired to so write and Joseph to so respond to [such] words! Others have benefited and will continue to benefit from James 1:5, but its primary purpose was to be part of the spiritual [awakening] leading to the last dispensation."
Elder Neal A. Maxwell, C.E.S. Symposium, August 15, 1991