Members of congress receive benefits and privileges. which privilege does the constitution give them?

i believe its that they cannot be questioned in the courts about debates in Congress

on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.

the quran was sent by an angel to muhhamad   which made up the quran they beiliev that there is on   god who controls everything and they believ every prophet lived jesus and the jews prophet