It was always my thoughts that Ellen White felt that we are the only fallen world. I went through 20 of 60 and it was all saying that the un-fallen worlds were plural and the fallen world singler. Over and over again. Here is one of them.
Christ is our redeemer. He is the Word that became flesh and dwelt among us. He is the fountain in which me may be washed and cleansed from all impurity. He is the costly sacrifice that has been given for the reconciliation of man.
The universe of heaven, the worlds un-fallen, the fallen world,
and the confederacy of evil cannot say that God could do more for the salvation of man than He has done. Never can His gift be surpassed, never can He display a richer depth of love. Calvary represents His crowning work. . . . The Lord would have His followers enraptured with God through the knowledge of His paternal character. {OHC 13.4}
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With Christian Love,
Sister Glass