From the Introduction to that book I take these details.
Ibn Ezra believed in a future life. In his commentary on Isaiah 55:3,
`AND YOUR SOUL SHALL LIVE', he says, `That is, your soul shall live
forever after the death of the body, or you will receive new life
through Messiah, when you will return to the Divine Law.'
See also on Isaiah 39:18. Of the potter's clay passage, Isaiah 29:16,
he has only a translation, `Shall man be esteemed as the potter's clay',
and no comment that could ever have given Browning a hint
for his use of the metaphor in his poem, even if he had ever seen
Ibn Ezra's commentary. See Rabbi Ben Ezra's fine `Song of Death'
in stanzas 12-20 of the grimly humorous Holy-Cross Day."




A Grammarian's Funeral.

--
* "Grammarian" mustn't be understood here in its restricted modern sense;
it means rather one devoted to learning, or letters, in general.
--

Shortly after the revival of learning in Europe.



The devoted disciples of a dead grammarian are bearing his body up
a mountain-side for burial on its lofty summit, "where meteors shoot,
clouds form, lightnings are loosened, stars come and go!
Lofty designs must close in like effects: loftily lying, leave him, --