Thee is the answer to the crossword for the term 'Of ___ I Sing'. This phrase is a line from the song 'America the Beautiful' written by Katharine Lee Bates in 1895. The full line is 'O beautiful for spacious skies, For amber waves of grain, For purple mountain majesties, Above the fruited plain! America! America! God shed his grace on THEE, And crown thy good with brotherhood, From sea to shining sea!'