Purgatory is not atonement for sins nor is it punishment. Purgatory is a purgation or purification of our residual self love and venial sins. Heaven, Hell, Purgatory, mortal sin and venial sin are all doctrines which are deeply rooted in scripture and full of beauty and insight into God’s mercy for thos who take the time and trouble to look for it.
But I say to you that everyone who is angry with his brother shall be liable to judgment; whoever insults his brother shall be liable to the council, and whoever says, “You fool!” shall be liable to the Hell of fire. (Matthew 5:22, NRSV-CE)
Jesus himself speaks of a relative gradation of sin. Note that the first two types of sin leave us open to judgement but the third type of sin leave us immediately liable to the “Hell of fire.” Jesus’ best friend tells us about sin which is not deadly for which we can pray (humanly repairable) and sin which is dealy sin for which we canot pray (need God’s forgiveness).
If anyone sees his brother sinning, if the sin is not deadly, he should pray to God and he will give him life. This is only for those whose sin is not deadly. There is such a thing as deadly sin, about which I do not say that you should pray. All wrongdoing is sin, but there is sin that is not deadly. (1 John 5:16-17)
These passages all fit the Catholic doctrine of mortal and venial sin perfectly. Venial sin does not break God’s covenant and so is humanly repairable by sinner himself through prayer, sincere repentance and sufficient contrition. Venail sin is therefor not deadly to our soul for a John says, “He should pray to God and he will give him life.” While venail sin leaves us open to God’s judgement, it does not carry the immediate punishment of Hell. Mortal sin on the other hand, is deadly to our soul. As Jesus states, mortal sin leaves us “Liable to the Hell of fire.” Since mortal sin breaks God’s covenant, it is not humanly repairable - we need God’s forgiveness to bring our soul back to life.
***…but nothing unclean will enter it… ***(Revelation 21:27)
Speaking about Heaven, Jesus’ best friend tells us that nothing unclean is allowed. No person with the stain of sin will be allowed entry into God’s presence. St. Paul agrees with St. John when he writes that we must strive…
…for that holiness without which no one will see the Lord. (Hebrews 12:14)
Therefore, I say to you, every sin and blasphemy will be forgiven people, but blasphemy against the Spirit will not be forgiven. And whoever speaks a word against the Son of Man will be forgiven; but whoever speaks against the Holy Spirit will not be forgiven, either in this age or in the age to come. (Matthew 12:31-32)
How do we get forgiveness in “an age to come?” In Hell there is no forgivenss. Those in Heaven don’t need forgiveness. Purgatory is the answer.
If anyone builds on this foundation with gold, silver, precious stones, wood, hay, or straw, the work of each will come to light, for the Day will disclose it. It will be revealed with fire, and the fire (itself) will test the quality of each one’s work. If the work stands that someone built upon the foundation, that Person will receive a wage. But if someone’s work is burned up, that one will suffer loss; the person will be saved, but only as through fire. (1 Corinthians 3:12-15)
Where does someone go to suffer loss yet be saved?You don’t suffer loss in Heaven. You can’t be saved in Hell. Purgatory is the answer.
Purgatory closes the loophole for those who don’t break the covenant yet are not yet perfect. These passages seem quite odd in a theology with only Heaven and Hell. The Catholic doctrine of Purgatory however is is not only 100% consisten with Scripture but is consistent with a loving and merciful God who knows our weaknesses and frailty yet cannot let anything less than perfect holiness enter into his presence.
Again, Purgatory is not punishment. It is a place of purifiation where those who have died in a state of sanctifying grace yet still (name removed by moderator)erfect are prepared by a merciful and loving God for entry into his presence.
Like obedient children, do not act in compliance with the desires of your former ignorance but, as he who called you is holy, be holy yourselves in every aspect of your conduct, for it is written, "Be holy because I (am) holy." (1 Peter 1:14-16)