It's difficult to do that from a Damnationist biased text. But they did leave me some to work with. Try these on for size. Through one righteous act came justification and life for all people. God is reconciling all things to himself.
Romans 5:18-19
Consequently, just as one trespass resulted in condemnation for all people,
so also one righteous act resulted in justification and life for all people.
19 For just as through the disobedience of the one man the many were made sinners,
so also through the obedience of the one man the many will be made righteous.
Colossians 1:19-20
For God was pleased to have all his fullness dwell in him,
20 and through him to reconcile to himself all things, whether things on earth or things in heaven, by making peace through his blood, shed on the cross.
Context is important. Paul is absolutely not teaching Apocatastasis, for this is very clear if you read the epistles in their full context.
At the beginning of Romans 5, Paul says:
"Therefore, since we have been justified by faith ..." That is, whoever believes in the person and works of Christ, which concurs with everything else in Scripture. It's not talking about those who reject God's grace through sin, unbelief and rebellion. This also becomes exceedingly clear when reading Romans 3 and 4. It's important to bear in mind what Paul writes in the verses before. Romans, in particular, follows a clear thought and argument that is well worth observing. I'm happy to elaborate that on this, but the outline becomes pretty clear if you read the entire epistle. It can be summarised as justification by God's grace through faith.
Same with Colossians. Paul is most certainly not speaking to unbelievers and unrepentant sinners, but comforting the Church at Colossae. We can know this because throughout the epistle Paul makes a distinction between those who are in Christ and those who are not. For example, he's talking specifically to those who have faith in Christ and are baptised into his death and raised into new life into Him, and he makes contrasts to false religion and unholy living. To make this point even more clear, remember what Paul writes in 1 Corinthians 6:9-10, that unrepentant sinners will not inherit the kingdom of God.
When judging, what are the options for a verdict? Is not the great and rich mercy of God unfailing? Jesus taught us that it is godly behavior to love our enemies. What should then expect from God in this regard? Something less than the perfection he expects from us. We should love our enemies while he plans to incinerate his? What's wrong with this picture?
Matthew 5:43-48
“You have heard that it was said, ‘Love your neighbor and hate your enemy.’ 44 But I tell you, love your enemies and pray for those who persecute you, 45 that you may be children of your Father in heaven. He causes his sun to rise on the evil and the good, and sends rain on the righteous and the unrighteous. 46 If you love those who love you, what reward will you get? Are not even the tax collectors doing that? 47 And if you greet only your own people, what are you doing more than others? Do not even pagans do that? 48 Be perfect, therefore, as your heavenly Father is perfect.
Yes, God does love the world, and we know from His Law and Gospel what this means. It means that while we were enemies of God, dead in sin and children of wrath, God sent His only Son to die for the sins of the world, so that everyone who believes in Him will have life, but those who reject Him will be condemned. Once again, there is no text in Scriptures that say "Whoever disbelieve in Jesus will have life", but this is what Apocatastasis teaches.
Matthew 5:43-48 has two primary purposes: (1) It's to call people to repentance, because we know we are not perfect, but through faith in Christ, we are graciously clothed with His righteousness. And (2) It's a call to sanctification for those who have been justified by faith. That is, we are gradually moulded into the likeness of Christ, which is the fruit and works of the Holy Spirit. Christ is not saying: "Be perfect and merit salvation", but He is calling people to faith in Himself.
Even in human justice systems we want the punishment to fit the crime. And make laws against cruel and unusual punishment. And sentences for imprisonment can never exceed the lifetime of the prisoner. Yet you (collectively) claim that God has with both malice and forethought created (designed) a way to inflict unimaginable and endless torment on those created in his own image. While you shrug it off as justice. Claiming the punishment fits the crime. Am I understanding you correctly?
No, here you seem to be confusing High Calvinism and the philosophical Problem of Evil with Scripture.
Let me be very clear:
God is good and holy. He is love. He is not the source, creator or cause of evil. He does not tempt people to sin, nor does He impute or bestow moral evil upon people. God does not create sinners from eternity and predestine them to damnation. Damnation is merited solely by the human will. (High Calvinism rejected)
Biblical scholars have attempted to solve the philosophical Problem of Evil through a variety of ways, and I'll gladly expand on this, but for efficiency's sake, let me just state that the Problem of Evil is a philosophical concept that doesn't fit Scriptures. It has an underlying philosophy and worldview that doesn't match the thoughts and themes of God's Word. It's really a different framework and it can't and shouldn't be forced on Scriptures. The Bible, simply speaking, teaches that salvation, from beginning to end, is entirely from God. But damnation, from beginning to end, is entirely from man. This is one of several holy mysteries apprehended through faith. And we can best understand it when studying the cross, where all of Scripture culminates into one event: Here we see the depth of sin, God's wrath, God's love, and God's faithfulness all at once. Apocatastasis fails to see this.
Simply speaking, it's impossible to read 2 Peter 2, for example, and come to a conclusion that supports Apocatastasis. All of the Bible and Church history is saturated with the Two Ways doctrine.