Many passages in the Word make it clear that while he was in the world the Lord fought battles against the hells, conquered them, brought them under control, and made them obedient to himself. I will extract just a few. In Isaiah:
Who is this who comes from Edom, from Bozrah with his clothes spattered, this one honorable in his clothing, walking in the magnitude of his strength? “It is I who speak with justice, great in order to give salvation.” Why are your clothes reddish? Why are your clothes like those of someone trampling in a winepress? “I trampled the winepress alone. There was no man from the people with me. Because I trampled people in my anger and stamped on them in my rage, their victory was spattered on my clothes. For the day of revenge was in my heart and the year of my redeemed had come. My arm performed salvation for me. I made the enemies’ victory go down into the ground.” He said, “Behold those others are my people, my children.” That is why he became their Savior. Because of his love and his mercy he redeemed them. (Isaiah 63:1–9)
These words are about the Lord’s battles against the hells. The clothes in which he was honorable and which were reddish mean the Word, to which the Jewish people had done violence. The combat itself against the hells and victory over them is described by his trampling people in his anger and stamping on them in his rage. The fact that he was alone and fought from his own power is described by these phrases: “there was no man from the people with me”; “my arm performed salvation for me”; and “I made the enemies’ victory go down into the ground.” His bringing salvation and redemption as a result is described by these phrases: “That is why he became their Savior”; and “because of his love and mercy he redeemed them.” The fact that this was the reason for his coming is meant by these phrases: “the day of revenge was in my heart and the year of my redeemed had come.”
Also in Isaiah:
He saw that there was no one and was astounded that there was no one interceding. Therefore his own arm performed salvation for him and justice made him stand up. Then he put on justice like a breastplate and a helmet of salvation on his head. He put on the clothes of vengeance and covered himself with zeal like a cloak. Then the Redeemer came to Zion. (Isaiah 59:16, 17, 20)
They were terrified; their mighty ones were broken. They fled in flight and did not look back. That day belonged to the Lord Jehovih Sabaoth, a day of retribution for him to take revenge on his enemies, for the sword to eat and be satisfied. (Jeremiah 46:5, 10)
These last two passages are about the Lord’s combat against the hells and victory over them.
Strap the sword on your thigh, Powerful One. Your arrows are sharp. Populations fall beneath you—enemies of the king at heart. Your throne is for an age and forever. You have loved justice. God anointed you for this. (Psalms 45:3, 5–7)
There are also many other relevant passages in the Psalms.
Because the Lord conquered the hells alone with no help from any angel he is called Hero and a Man of Wars (Isaiah 42:13; 9:6), the King of Glory, Jehovah the Mighty, a Hero of war (Psalms 14:8, 10), the Mighty One of Jacob (Psalms 132:2), and in many passages “Jehovah Sabaoth,” that is, “Jehovah of Armies.” For the same reason his coming is called the terrible day of Jehovah; a cruel day; a day of indignation, rage, anger, revenge, destruction, and war; a day of the trumpet, of the call to arms, of uproar; and so on.
In the Gospel writers we read the following:
Now is the judgment of the world; the Prince of This World is cast to the outside. (John 12:31)
The Prince of This World has been judged. (John 16:11)
Have confidence; I have overcome the world. (John 16:33)
I saw Satan falling like a thunderbolt out of heaven. (Luke 10:18)
In these passages “the world,” “the Prince of This World,” “Satan,” and “the Devil” mean hell.
In addition, the Book of Revelation from beginning to end describes the condition of the Christian church today and the fact that the Lord is going to come again, take control of the hells, make a new angelic heaven, and then establish a new church on earth. All this is foretold there but it has not been disclosed before today. The reason is that the Book of Revelation, like all the prophetic portions of the Word, was written in pure correspondences. If the correspondences had not been disclosed by the Lord, hardly anyone could have correctly understood a single verse there.
Now, for the sake of the new church, everything in the Book of Revelation has been disclosed in Revelation Unveiled, published in Amsterdam, 1766. Some will see those things—those who believe the Word of the Lord in Matthew 24 about the state of the church today and about his coming. In fact, the only people who are still ambivalent are those who have planted two of the modern-day church’s beliefs so deeply in their own hearts that those beliefs cannot be uprooted: the belief in three divine Persons from eternity; and the belief that the suffering on the cross was the actual redemption. As noted in the memorable occurrence above at Section 113, these people are like beakers full of iron filings and powdered sulfur. If water is poured in the beakers, first there is increasing heat and then there is fire, which breaks the beakers. Likewise, when these people hear some living water, which is the genuine truth in the Word, and it goes into their eyes or ears, they burst violently into flames and expel it as something that is about to break their heads.
from True Christianity, Section 116