Analysis of information sources in references of the Wikipedia article "The Wings of the Dove" in English language version.
None the less did she in fact cling to consciousness; death, at the last, was dreadful to her; she would have given anything to live - and the image of this, which was long to remain with me, appeared so of the essence of tragedy that I was in the far-off aftertime to seek to lay the ghost by wrapping it, a particular occasion aiding, in the beauty and dignity of art.
[...] images of wealth and purity are present in Psalm 68:13: Though ye have lien among the pots yet shall ye be as the wings of a dove covered with silver and her feathers with yellow gold [...]