When you make the case of purgatory, it has to be one of cumulative effect. You have to show that the concept is rife throughout Scripture. These are just a few, there are more.
2 Tim. 1:16-18 - Onesiphorus is dead but Paul asks for mercy on him “on that day.” Of course, there is no need for mercy in heaven, and there is no mercy given in hell. Where is Onesiphorus? He is in purgatory. Logical deduction
Hebrews 12 (RSV):
“22 But you have come to Mount Zion and to the city of the living God, the heavenly Jerusalem, and to innumerable angels in festal gathering, 23 and to the assembly of the first-born who are enrolled in heaven, and to a judge who is God of all, and to the spirits of just men made perfect, 24 and to Jesus, the mediator of a new covenant, and to the sprinkled blood that speaks more graciously than the blood of Abel.”
Notice that the Christians has come to more than just God, but the entire host of heaven including saints. This is what we partake in through the blood of Christ. The ENTIRE body.
Rev. 21:4 - God shall wipe away their tears, and there will be no mourning or pain, but only after the coming of the new heaven and the passing away of the current heaven and earth. I Note the elimination of tears and pain only occurs at the end of time. But there is no morning or pain in heaven, and God will not wipe away their tears in hell. I wouldn’t base my entire argument on this, but it does seem to imply souls in purgatory.
Hebrews 12:29: “for our God is a consuming fire.”
Wisdom ch 3:1-6 But the souls of the just are in the hand of God, and no torment shall touch them. They seemed, in the view of the foolish, to be dead; and their passing away was thought an affliction and their going forth from us, utter destruction. But they are in peace. For if before men, indeed, they be punished, yet is their hope full of immortality; Chastised a little, they shall be greatly blessed, *because God tried them *and found them worthy of himself. As gold in the furnace, he proved them, and as sacrificial offerings he took them to himself."
Is it any wonder they don’t accept the Deuterocanonicals?
Zechariah 13:8-9: In all the land, says the LORD, two thirds of them shall be cut off and perish, and one third shall be left. I will bring the one third through fire, and I will refine them as silver is refined, and I will test them as gold is tested. They shall call upon my name, and I will hear them. I will say, “They are my people,” and they shall say, “The LORD is my God.”
In the above, if you read the entire chapter, God is speaking of the messianic age. Notice the term “the Land.” This refers to the Promised Land. Since Israel’s struggle toward the Promised Land is symbolic of our journey toward salvation, it is significant here that God cuts off those already in it, and takes the remaining faithful and leads them through a purification by fire, since that is how metal is refined. Very strong allusions here, when you look past the literal meaning, particularly combined with the passage in Wisdom.
Malachi 3:2-3: But who will endure the day of his coming? And who can stand when he appears? For he is like the refiner’s fire, or like the fuller’s lye. He will sit refining and purifying (silver), and he will purify the sons of Levi, Refining them like gold or like silver that they may offer due sacrifice to the LORD.
Okay notice above, it refers to “the Day.” This always refers to judgement day with the article in an eschatological sense, and so at a point after death the faithful are refined. Keep in mind how significant the imagery of a refiner’s fire is, because what does a refiner’s fire do? It refines IMPURITIES.
More refiner imagery just for kicks:
1 Peter 6-9: “In this you rejoice, although now for a little while you may have to suffer through various trials, so that the genuineness of your faith, more precious than gold that is perishable even though tested by fire, may prove to be for praise, glory, and honor at the revelation of Jesus Christ. Although you have not seen him you love him; even though you do not see him now yet believe in him, you rejoice with an indescribable and glorious joy, as you attain the goal of (your) faith, the salvation of your souls.”