Ezkiel 39:17-20 is after Gog/Magog. Gog/Magog itself is end times, Ezekiel 38:8.
At the end of the 7 years, the kings of the earth will gather their armies at Armageddon, which is putting there force together. They will march down secure Jerusalem, holding the Jews their as hostages - half of the city held as captives.
Zechariah 14:
2 For I will gather all nations against Jerusalem to battle; and the city shall be taken, and the houses rifled, and the women ravished; and
half of the city shall go forth into captivity, and the residue of the people shall not be cut off from the city.
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Do you know who else has been made hostages, even as we speak? The entire human race - by Satan.
It was his plan to prevent his own destruction.
When Satan got Adam and Eve to sin - it made the entire human race hostages in effect. Because God could not in fair judgment destroy Satan for his sin - without also destroy the entire human race for our sin.
So we became captive, not just to sin, but also hostages to Satan - until Jesus freed us. And makes it possible for God to go forward with his planned destruction of Satan. Because the human race has been freed from the power of sin.
If you step back a ways and look at the bible in the big picture - it is a book about how God is going to destroy Satan. And much of what is in bible prophecy that is the underlying principle taking place. Which in Revelation, we read about the destruction of Babylon, the great is fallen, is fallen! That is Satan's kingdom overshadowing the world, as Satan is cast down to earth, as God starts dismantling his kingdom, and tightening the noose on his destruction.
All of the suffering, death, sickness, and hardship of the human race goes back back to Satan. But God is going to destroy him, and restore creation.
Ezekiel 28:19 All they that know thee among the people shall be astonished at thee: thou shalt be a terror, and
never shalt thou be any more
That's a thus saith the Lord message to Satan.
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The human race are my people. A different race, one gone bad directly in the presence of God in heaven, one that is trying to destroy my people are Satan and his angels. The battle though is the Lord's.
For my race....
John 1:
12 But as many as received him [Jesus], to them gave he power to become the sons of God,
even to them that believe on his name:
....and apparently some from Switzerland, Dorothy Mae, now of the Kingdom.