Revelation 11:18

the nations were enraged, but thine anger has come; the time has come for the dead to be judged, the time for rewarding thy servants the prophets, and the saints who reverence thy name, both low and high, the time for destroying the destroyers of the earth."

Revelation 16:6

They poured out the blood of saints and prophets, and thou hast given them blood to drink! They deserve it!"

Revelation 16:16

And they were mustered at the spot called (in Hebrew) Harmagedon.

Revelation 18:20-21

O heaven, rejoice over her! Saints, apostles, prophets, rejoice! For God has avenged you on her now."

Revelation 19:19-21

And I saw the Beast and the kings of earth and their troops mustered to wage war on him who was seated on the horse and on his troops.

Revelation 20:8

and he will emerge to seduce the nations at the four corners of the earth, even Gog and Magog, mustering them for the fray. Their number was like the sand of the sea,

Treasury of Scripture Knowledge

Summary

I will also gather all nations, and will bring them down into the valley of Jehoshaphat, and will plead with them there for my people and for my heritage Israel, whom they have scattered among the nations, and parted my land.

Bible References

Also

Revelation 19:19
And I saw the Beast and the kings of earth and their troops mustered to wage war on him who was seated on the horse and on his troops.
Revelation 20:8
and he will emerge to seduce the nations at the four corners of the earth, even Gog and Magog, mustering them for the fray. Their number was like the sand of the sea,

Will plead

Revelation 11:18
the nations were enraged, but thine anger has come; the time has come for the dead to be judged, the time for rewarding thy servants the prophets, and the saints who reverence thy name, both low and high, the time for destroying the destroyers of the earth."
Revelation 16:6
They poured out the blood of saints and prophets, and thou hast given them blood to drink! They deserve it!"
Revelation 18:20
O heaven, rejoice over her! Saints, apostles, prophets, rejoice! For God has avenged you on her now."