The link not only fails to demonstrate purgatory, but it blatantly conflicts with scripture in many places.
"What does Scripture say about entering heaven? In Revelation we read that "nothing impure will ever enter it" (Rv 21.27). But are we not all made pure by our justification, by the blood of the Lamb? Again, such a view is incompatible with the doctrine of sanctification."
This confuses justification with sanctification. I know I've quoted it before, but it is such a GREAT verse:
Hebrews 10:
"12 But when this priest had offered for all time one sacrifice for sins, he sat down at the right hand of God. 13 Since that time he waits for his enemies to be made his footstool, 14 because by one sacrifice he has made perfect forever those who are being made holy.
"he has made perfect forever" - not he will make perfect, or maybe if we are contrite enough - no, Jesus Christ HAS MADE PERFECT FOREVER! Justification! Not good enough until the next sin, but PERFECT FOREVER!
And who is it? "those who are being made holy" Sanctification. We are being made holy - set apart. And not 'who are becoming holy', but 'are being made holy' - an act being done to us, by God.
I have been forgiven for every sin I WILL commit.
Ephesians 2 "6 And God raised us up with Christ and seated us with him in the heavenly realms in Christ Jesus,"
Not will raise us up, or will seat us, but SEATED US WITH HIM! It is finished! It is done!
I could quote verses ad nauseum. However, it was so pervasive that people twisted it to believe that Paul's teachings "serv[ed] as a license to commit whatever act we so desire since forgiveness is already received or gotten without contrition", to quote your link. And Paul repeatedly defends himself by explaining that we've been born again, a new creation - not a creature of sin, but one of good deeds.
About the Judgment of Christians, your link uses 1 Corinthians 3 to say "Paul plainly tells us that Christians with bad deeds who approach Christ the Judge will find themselves in a fire, burning away those deeds. Such a place is not hell for Paul is speaking of saved Christians: "he himself will be saved." It cannot be heaven for there is suffering: "he will suffer loss . . . as one escaping through flames."
But what Paul says is, "11 For no one can lay any foundation other than the one already laid, which is Jesus Christ. 12 If any man builds on this foundation using gold, silver, costly stones, wood, hay or straw, 13 his work will be shown for what it is, because the Day will bring it to light. It will be revealed with fire, and the fire will test the quality of each man's work. 14 If what he has built survives, he will receive his reward. 15 If it is burned up, he will suffer loss; he himself will be saved, but only as one escaping through the flames."
It is our ministry that will be put to the flame, to see if we built on the foundation well ("using gold, silver, costly stones") or poorly ("wood, hay or straw"). And if the latter, we enter with nothing to show our Lord, for while WE have been forgiven, our works - our ministry, building the church on the foundation of Jesus Christ - will be shown to be nothing.
I will try to write more tomorrow.