My Rebbi zt"l had an interesting psak: if one sings only the first stanza of Hatikva, one must replace the word chofshi with kadosh. As I understood it, singing the first stanza alone is a very secular song. Replacing chofshi with kadosh gives the first stanza religious content. (In fact, I think he held "chofshi" had antireligious connotations.) But religious ideas are found several times throughout the complete Hatikva - 9 stanzas.