Is Purgatory Biblical?

Look at 1 Corinthians 3:14–15: "If the work which any man has built on the foundation survives, he will receive a reward. If any man’s work is burned up, he will suffer loss, though he himself will be saved, but only as through fire." You see, the Latinate word purgatory means a purgation or burning by fire. Paul in these verses refers to a purgation process whereby a man is saved even though his works are burned away. This is precisely what the Catholic Church teaches. A person at death who still has personal faults is prevented from entering into heaven because he is not completely purified. He must go through a period of purgation in order to be made clean, for nothing unclean will enter heaven (cf. Rev. 21:27

Jesus declared that we must be perfect as the heavenly Father is perfect (Matt 5:48, Rev 3:2). Other Scriptures also teach that we are called to ultimate perfection (e.g. 2 Cor 7:1; James 1:4) Further heaven is described in the Bible as a place of those who have been made perfect (Heb 12:23; Rev 21:27). The Church takes these promises of ultimate perfection and of heaven as the place of that perfection very seriously. If that perfection is not attained by the time of death then, before entering heaven, the Church understands from the Word of God that we must undergo a final purification that brings to completion the good work that God has begun in us (cf Phil 1:6). The need for purgation thus flows from the promises of God that we shall one day be perfect.

Exactly how this purgation (or purification) is carried out is not revealed explicitly. Some have used the image of fire based on certain scripture texts (e.g. 1 Cor 3:13-15, Isaiah 6:5-7; Malachi 3:2-3). However, as can be seen in the quote already supplied, the Catechism is careful to point out that the purification of Purgatory is entirely different from the experiences of Hell. Thus to summarize, Purgatory is a place and a process of final purification which the elect undergo after death, if necessary, before entering heaven