Justice (God's utterly fair assignment of temporal consequences) is promised in many Biblical passages, both OT and NT, and it is promised to all. The texts uses words like "anyone," "everyone", "all men", "all the churches", "each of you" .
You notice that, don't you? Even when God is addressing members of His church.
But being punished for our deeds can be temporal; this does not always or necessarily mean that the person is eternally damned.
Job 34:11 (LINK)...For according to a man's deeds, He repays him; according to a man's ways, He brings consequences.
Psalm 62:12b (LINK)...For You repay each man according to his work.
Jeremiah 17:10 (LINK)...I, the LORD, search the heart; I test the mind to reward a man according to his way, by what his deeds deserve.
Matthew 16:27 (LINK)...For the Son of Man will come in His Father’s glory with His angels, and then He will repay each one according to what he has done.
Romans 2:6 (LINK)... God will repay each one according to his deeds.
Col 3:25 (LINK)...Anyone who does wrong will be repaid for their wrongs, and there is no favoritism.
Revelation 2:23 (LINK)...all the churches will know that I am the One who searches minds and hearts, and I will repay each of you according to your deeds.
Quite consistent, isn't it?
You must certainly see that justice (being paid back) for deeds is promised to "anyone," "everyone", "all men", "all the churches", "each of you"
It's impossible to call that an unbiblical doctrine.
And yet you have not addressed the verses above about our sins being washed away, nor have you brought up exactly how the specific doctrine of ‘Purgatory’ comes from it.
And if these are punishments from God, how is it that the Pope can overrule God’s justice, and if he CAN do so, why doesn’t he do so for everyone?
But that kind of misses the point that Purgatory is not REALLY supported by the entirety of Scripture.
If we are to accept ALL of Scripture and not just the bits that support what we already believe—the prooftext verses having already been posted upthread—then we see that Christians shall be judged by their good works, which prove the existence of grace that saves through faith. For though works do not themselves save, they are nevertheless proof of salvation. And good works shall yes, be rewarded.
In contrast, the works of those who reject saving grace are nothing but evil; even the best good works are corrupted by sin, and will so be judged.
(Also, the context of some of the verses that you’ve posted doesn’t really speak as much about temporal punishments for sin; Paul in Romans, for example, is speaking in context about how both Greeks and Jews are one in Christ, and how Jews should not set themselves above Greek Christians, because God does not show partiality.)
Having said that, I appreciate digging into Scripture instead of starting a flame war.
“It’s impossible to call that an unbiblical doctrine. ”
It is unbiblical to leave out what happens to the believer when he entrusts himself to Christ.
It is unbiblical to fail to distinguish consequences in this life from consequences in eternity.
Then tell us how you get from there to a place called Purgatory where the temporal punishments due for ones sins are cleansed through their suffering and through the deposit of grace taken from the "Treasury of Merit" and applied to the account of a person through other's prayer(s), Masses, medals, etc.? That certainly isn't Biblical.