Rule, Britannia!
Genesis parody
Britain rising from the sea mimics God creating land from water in Genesis. This rewrites biblical creation myth as British nationalist origin story.
Charter myth
"Charter" invokes Magna Carta—Thomson claims Britain's freedom isn't earned but divinely granted at the nation's literal birth.
Oak = navy
"Native oak" is the wood British warships were built from. The metaphor: storms that knock down trees actually strengthen Britain's naval power.
Empire euphemism
"Subject main" = the ocean itself becomes Britain's subject. "Every shore it circles" claims all coastlines as British territory.
Gendered nationalism
Final stanza splits Britain into feminine beauty ("the fair") protected by masculine military strength ("manly hearts")—standard 18th-century gender politics.