The only thing that will ever work is that of Adam. Eve Enoch, Abraham, Sarah Jacob, David, Hezekiah, Daniel, Nehemiah, John Baptist, Blessed Mary, Joseph, Saul of Tarsus, Beloved John, Tertullian, Pierre de Vaux, John Hus, Martin Luther, John Knox, John Wesley and his brothers Charles and Sam, George Whitfield, Billy Sunday, my Dad and Mom, and myself, my children, and brethren of my local independent immersionist Bible-preaching assembly--and that is salvation by persistent faith alone through the Word of God alone, that taught all of us about the Messiah Yeshua/Iesous/Jesus and His work alone one time forever on the Cross of Calvary, and the shedding of His Blood placed on the true Mercy Seat of Heaven to pay for all our sins to obtain reconciliation with my Heavenly Father.
Faith alone it is, in His Faithfulnees, continuing right out into eternity, and that's all. For Biblical evangelicals such as those listed above, that is.
Without it is condemnation to eternal, everlasting corruption and death, since the day our forbears were banished from the Garden and the Tree of Life.