Prayers prayed in the Spirit never die until they accomplish God's intended purpose. His answer may not be what we expected, or when we expected it, but God often provides much more abundantly than we could think or ask. He interprets our intent and either answers or stores up our prayers. Sincere prayers are never lost. Energy, time, love, and longing can be endowments that will never be wasted or go unrewarded.
Prevailing prayer is prayer that pushes right through all difficulties and obstacles, drives back all the opposing forces of Satan, and secures the will of God. Its purpose is to accomplish God's will on earth. Prevailing prayer is prayer that not only takes the initiative but continues on the offensive for God until spiritual victory is won. - Wesley L. Duewel
There is unusual power in united prayer. God has planned for His people to join together in prayer, not only for Christian fellowship, spiritual nurture, and growth, but also for accomplishing His divine purposes and reaching His chosen goals.