For example, this verse is not in every version of the hymn "O Day of Rest and Gladness", and I am not sure why.
"Thou art a port protected"O Day of Rest and Gladness" by Author: Christopher Wordsworth (1862) Trinity Hymnal #392 (1990) verse 3.
From storms which round us rise;
A garden intersected
With streams of Paradise;
Thou art a cooling fountain
In life's dry, dreary sand;
From thee, like Pisgah's mountain,
We view our promised land. "
Click on the link and check out the various hymnals that have this Hymn, and you can see that this verse is left out of many of them.