I believe the answer is,
<em>Then, methought, the air grew denser, perfumed from an unseen censer
</em>
<em>Swung by Seraphim whose foot-falls tinkled on the tufted floor.
</em>
<em>"Wretch," I cried, "thy God hath lent thee—by these angels he hath sent thee
</em>
<em>Respite—respite and nepenthe from thy memories of Lenore!
</em>
<em>Quaff, oh quaff this kind nepenthe and forget this lost Lenore!"
</em>
<em>Quoth the Raven, "Nevermore."</em>