No room for Jerusalem in new hymn book, Why was it there before?

The Scotsman - Scotland - No room for Jerusalem in new hymn book:
"THE hymn Jerusalem has been left out of the final version of the new Church of Scotland hymn book because of its associations with English nationalism - despite an outcry against the move.
"But, for the first time, Amazing Grace, What a Friend We Have in Jesus and Lord of the Dance will be included in the first new hymnary for more than 30 years."

It is a measure of how far even the Presbyterians of Scotland have strayed that this should be a matter of controversy for the reason stated.

Consider politician's this defense of including Jerusalem in the COS hymnal:
'Mike Russell, an unsuccessful candidate in this year's SNP leadership contest, said the concerns that Jerusalem was connected to English nationalism were misguided. "It's just a silly misreading of the words because they have been captured by a whole load of jingoistic people," he said. "Blake wrote essentially an anthem to socialism. I think there's little excuse for not including it in the final version, particularly because they have had second thoughts."'

If you are not familiar with the hymn, you can find the words here: William Blake's poem Jerusalem.