But how are you defining justice? What human cultures predominantly tend to call justice is not the same thing as what is described as divine justice. Vengeance and retaliation, payback, eye for an eye, punishment (as opposed to correction), etc, is a retributive justice. Divine justice on the other hand, is the opposite of this. It is not about smiting your enemies, but rather about fairness to all, both the good and the bad. It's not about payback, "now you'll get yours!" That is contrary to the nature of the Divine. Divine justice is a distributive justice, that those who are low will be elevated, and those who are unduly exalted will be leveled back that all are equal in God's kingdom.
These two are not two faces of God's justice. They are contradictions. They are incompatible. They are opposites. I'll try to explain why, drawing off my own personal experience, as well as knowledge of scripture.
For instance, Jesus teaches to love your enemies, to pray or do good to those who harm you, etc. He even goes so far in scripture to pray in his dying breath to forgive the very ones who crucified him, with divine wisdom and compassion speaking, "They know not what they do". This is the perfection of Love. This is divine love.
Imagine instead that scene and the gospel writer having Jesus say instead, "You're going to get yours for this! I will crush you and squeeze the blood out of your bodies with a river of your blood and those like you whom I hate running 180 miles! Vengeance is mine!! I shall return and reign over you with an iron fist, smashing those who opposed me!"
Doesn't exactly carry the same inspiration for love to emerge in us, does it? In fact, in works contrary to love, stirring imaginations of payback, letting our inner rage imagine the worst for our enemies. This is not a path of love, but a path of victimhood and human rage seeking vengeance. As the old saying goes, the dog who wins in a fight is the dog you feed. "Love your enemies", inspires us to feed the dog of Love. "God will destroy you, and I can't wait," feeds the dog of our own hatred and anger. Hatred works against love. You cannot be both happy and angry at the same time. Right?
So you asked where is that verse in the Bible. I'll share that here by way of providing some contradictory images of Jesus you find from different authors at different times with their respective views of Christ and what he should look like to them:
The Path of Love Jesus
“You have heard that it was said, ‘Eye for eye, and tooth for tooth.’ But I tell you, do not resist an evil person. If anyone slaps you on the right cheek, turn to them the other cheek also. And if anyone wants to sue you and take your shirt, hand over your coat as well. If anyone forces you to go one mile, go with them two miles. Give to the one who asks you, and do not turn away from the one who wants to borrow from you.
“You have heard that it was said, ‘Love your neighbor i and hate your enemy.’ But I tell you, love your enemies and pray for those who persecute you, 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. If you love those who love you, what reward will you get? Are not even the tax collectors doing that? And if you greet only your own people, what are you doing more than others? Do not even pagans do that? Be perfect, therefore, as your heavenly Father is perfect.
Vengeful Payback For All Your Wrongs Jesus
His eyes are like blazing fire, and on his head are many crowns. He has a name written on him that no one knows but he himself. He is dressed in a robe dipped in blood, and his name is the Word of God.
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The angel swung his sickle on the earth, gathered its grapes and threw them into the great winepress of God’s wrath. They were trampled in the winepress outside the city, and blood flowed out of the press, rising as high as the horses’ bridles for a distance of 1,600 stadia.
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And I saw an angel standing in the sun, who cried in a loud voice to all the birds flying in midair, “Come, gather together for the great supper of God, so that you may eat the flesh of kings, generals, and the mighty, of horses and their riders, and the flesh of all people, free and slave, great and small.”
How can there be any meaning to guide and teach us the path of love and compassion and forgiveness, when we are to believe he is capable of this? Children learn through examples, not just empty words. If Jesus tells his children, do not hate but love, and then we read about him slaughtering people, dipping his robes in a river of blood five feet deep and 180 miles long that he created, feeding the corpses of his slain enemies to vulture and celebrating their deaths with a shout to heaven in praise of God, what are we to think?
Imagine a child growing up in a home with a parent who taught them to love your enemies, and then sees them doing this? Which do you think they will listen to? "But dad, you stuck that knife into that guys throat for dissing you, why can't I do that to Billy who beats me up all the time. You're not exactly loving yourself, are you?" That's reality.
These are contradictory ideas of God's justice. Both are found in the Bible. But is that latter image from the Jewish Apocalyptic Christian John of Patmos (not Gospel John author), the nature of Jesus of Nazareth who started a following, teaching that the kingdom of God had already arrived in the world through non-violent resistance to human injustices in cooperation with the Spirit of God? No, it is not.
That image is itself the same injustice of human society, only with the oppressed now becoming the oppressors. That's not a change in operation at all. It's simply switching who has the power over who now. That is not Divine Justice where all have the power, and all are fed, and clothed, and supported, and loved, and corrected non-violently. Blood, begets blood. Vengeance begets vengeance. Love stops this, not by force, but through persuasion, through invitation. The teachings of Jesus are to say no to that world system of force and violence.
When we look in ourselves, we know the energies each of these generate. How good do you feel inside after you've spent time imaging paying back your enemies for the harm they've done you, and what you'd like to see happen to them in return as they get their "just dues", as we imagine? Do you feel better, or worse. I'll answer that myself. You feel far worse. You may feel the andrenelization of all of it, but that is not peace. It's merely a distraction from feeling your own pain. Hatred is not the path that Jesus taught. Just because that book appears in the Bible, does not mean it is consistent with the nature of the teachings of Jesus, such as those found in the Beatitudes. They contradict it.
I don't need to believe the Bible is perfect, in order to believe in the Perfection of God. The Spirit within bears witness to what is Truth, what comes from Itself. And Love, is that witness. Love does no harm.
We all refuse God to one degree or another in our lives. This is why it is a path of constant surrender for everyone, no matter how far along on the path one is. Should I judge another as "refusing God", as if I don't do the same thing? Compassion teaches that when we recognize our own sins, we don't then assume they are "bad" people, and we are somehow not ourselves anymore. That to me sounds like we haven't really recognized and come to terms with forgiving ourselves. But God's love is captured well here, "Where are your accusers? Neither do I condemn you".
Even if someone continues in their destructive behaviors, and we all have these, saints and sinners alike, these are degrees of our awakenness, or growth, or spiritual maturities. We shouldn't imagine that, "I'm saved!", as if that means "I'm good now. Jesus fixed me". That's still a bit in the denial stage. They're feet aren't quite firmly on the path yet.
Rather, their being "in darkness", is not a judgment of condemnation. But rather, it is a call for compassion to understand, support, and help your neighbor. These are the core teachings of Jesus of Nazareth.
I don't believe God has wrath at all, let alone pours it out in vengeance on even his "enemies". God is Love, absolute Love. Evil, of which hate, malice, spite, vengeance, and personal payback for wrongs, does not, and cannot exit in God. That is contrary to the nature of God and Divine Love and Justice,
"But I tell you, love your enemies and pray for those who persecute you, 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."
That is Truth. The Spirit bears Witness. "Love works no ill".