Unam Sanctam was an early fourteenth-century Bull on papal supremacy issued by Boniface VIII related to a dispute he was having with a king of France. Drawing from the ark imagery for the true church, it restricted salvation to those in submission to the pope: “Now, therefore, we declare, say, determine and pronounce that for every human creature it is necessary for salvation to be subject to the authority of the Roman pontiff.”18
Is this an infalible statement?
