The rainbow comes and goes

It was a treat seeing a bit of the Intimations Ode on Garrison Keillor's web site a couple days ago, but the intern responsible for the typo in the last line of this stanza needs to be sent back to junior high for remedial English, no?

The rainbow comes and goes,
And lovely is the rose;
The moon doth with delight
Look round her when the heavens are bare;
Waters on a starry night
Are beautiful and fair;
The sunshine is a glorious birth;
But yet I know, where'er I go,
That there hath past away a glory from the earth.

The Writer's Almanac

Footnote: By the way, "past" can be an adjective, adverb, noun, or preposition. I wouldn't have thought of preposition.