What did the Constitution of the Confederacy protect?

the U.S. Constitution has a clause that states "No bill of attainder or ex post facto law shall be passed", the Confederate Constitution also adds a phrase to explicitly protect slavery.  

so it basically is saying that the constitution of the confederacy protects slavery  

Explanation:

The American media helped popularize the song by using it as an example of everything that was wrong with the youth of that time. Due to its controversial lyrics, some American radio stations, "claiming it was an aid to the enemy in Vietnam", banned the song.