Laboring in Prayer (Praying for the Lost) ft. JT Thomas

Why do prayers for unbelieving friends and family members seem so ineffective, and where do I find the hope and stamina to keep on praying for someone else when nothing seems to be happening?  The understanding and practice of contending and travail, pictured in the life of the prophet Elijah, gives us both the inspiration and method for praying for the lost.