is it worship or a song?

At aforesaid bbq, we sang worship songs and The Star Spangled Banner and America The Beautiful. Normally I bristle at such syncretism, but some verses in the latter song really struck me:

Confirm they soul in self control, Thy liberty in law

I admit, I was able to pray while singing that line...not only for our country but myself. Perhaps patriotic hymns & worship hymns were much more aligned back in the day? Always a dangerous line to walk, but I do know that I sure agree with that line.