He who does not believe according to the tradition of the Catholic Church is an unbeliever.
John of Damascus...we shall incur no slight injury, but rather great danger, if we rashly yield ourselves to the inclinations of men who aim at exciting strife and tumults, so as to draw us away from what is good? Let us cleave, therefore, to those who cultivate peace with godliness?
John of DamascusBoth angels and demons are ignorant of the future, yet they make predictions. The angels do so when God reveals the future to them and commands them to prophesy, and what they prophesy comes to pass. Demons also make predictions, but these are only guesses based on what they see from afar.
John of Damascus