Carl wonders/Oaths & Pledges

Carl wonders how many people can finish these -- or at least know where they come from------
1. I pledge Allegiance to.........
2. On my Honor.........
3. I do solemnly swear (at least 2 places)..
4. O God, The Eternal Father.........
5. O say can you see............
6. I hereby declare on oath......