"...the passage [2 Maccabees 12:39-46] is self-contradictory and inconsistent. It states that these dead “had gone to rest in godliness” (v. 45), but then it tells us that these dead warriors were idolaters, killed by God due to their idolatry."
"In Matthew 5:26 and Luke 12:59 Christ is condemning sin and speaks of liberation only after expiation."
The Life-Application Study Bible has this footnote on Matthew 5:25-26:
Gregory the Great is believed to have played a key role in the acceptance and development of Purgatory during the Medieval period:
"Much, however, in Gregory fouls the sweetness of his instruction and his orthodoxy. As indicated, his allegory at time passes the bounds of outrageousness. Medieval interpretation suffered; formalization of his method closed Scripture to the laity. His credulous acceptance of stories of miracles performed by relics of the saints, sometimes of comical proportions and sometimes like the horror gimmicks of a slasher movie, helped create the massive burden of the medieval penitential system. Add to this his acceptance of the intercession of departed saints, his belief in the efficacy of masses for the dead, his anecdotal exposition of a state of purgatory, and his belief in the merits of pious works and a concoction alien to the biblical Gospel emerges."
Annually, thousands of Roman Catholics give money for Masses to be said for their deceased loved ones. Thus, we see how Purgatory in a sense makes God a respecter of persons (which contradicts what the Bible says regarding the character of God). Wealthier individuals can have more prayers and Masses said and so faster enter into heaven than those who are poorer. It wrongfully portrays God as judging on the basis of external factors rather than the heart. There is a purification process for believers on earth, which is through the shed blood of Jesus Christ (Hebrews 9:12-14). How many prayers and Masses would need to be said in order to get somebody out of Purgatory?