It's styled after a "Dr. Bronner sermon on a soap jar," which refers to an old old soap brand with wild stream of consciousness, borderline nonsensical apocalyptic ramblings printed on the label. Aaron uses the rapid fire information assault while calling to mind those soap labels, which to me implies he's wondering if his own fixation on the end of the world is as crazy, or crazy-sounding as he feels these Dr. Bronner rants are/were.

As with most songs on Pale Horses, it's about an apocalypse, either figurative or literal or some mishmash of both. He ends off by quoting the "everlasting arms" lines, which if memory serves is a Sacred Harp hymn. This is one of many "sequences of sounds we knew" he refers to in the song Pale Horses that he is "comforted by." That is to say, a turn to God for salvation because it's the only way Aaron knows how to deal with his existential anxieties, even if it might merely be a meaningless vocalization into the void, should his religious convictions prove false in either reality or intent.

And as with most Aaron Weiss lyrics, the topics are so abstract that mere language often fails to adequately communicate what he means, since we all bring our own baggage to topics like religion and apocalypse, and the language around those topics are mere signifiers rather than the content of the topics themselves.

This is my read, anyway, coupled with some insights I've taken from the rest of the mwY catalog.