Joshua 9:2

that they gather themselves together to fight with Joshua, and with Israel -- one mouth.

2 Chronicles 20:1-30

And it cometh to pass after this, the sons of Moab have come in, and the sons of Ammon, and with them of the peoples, against Jehoshaphat to battle.

Psalm 2:1-2

Why have nations tumultuously assembled? And do peoples meditate vanity?

Psalm 83:2-8

For, lo, Thine enemies do roar, And those hating Thee have lifted up the head,

Proverbs 11:21

Hand to hand, the wicked is not acquitted, And the seed of the righteous hath escaped.

Isaiah 8:9-10

Be friends, O nations, and be broken, And give ear, all ye far off ones of earth, Gird yourselves, and be broken, Gird yourselves, and be broken.

Isaiah 8:12

'Ye do not say, A confederacy, To all to whom this people saith, A confederacy, And its fear ye do not fear, Nor declare fearful.

Isaiah 54:15

Lo, he doth diligently assemble without My desire, Who hath assembled near thee? By thee he falleth!

Joel 3:9-13

Proclaim ye this among nations, Sanctify a war, stir up the mighty ones, Come nigh, come up, let all the men of war.

Acts 4:26-28

the kings of the earth stood up, and the rulers were gathered together against the Lord and against His Christ;

Revelation 16:14

for they are spirits of demons, doing signs -- which go forth unto the kings of the earth, and of the whole world, to bring them together to the battle of that great day of God the Almighty; --

Revelation 20:8-9

and he shall go forth to lead the nations astray, that are in the four corners of the earth -- Gog and Magog -- to gather them together to war, of whom the number is as the sand of the sea;

Treasury of Scripture Knowledge

Summary

That they gathered themselves together, to fight with Joshua and with Israel, with one accord.

General references

Bible References

Gathered

2 Chronicles 20:1
And it cometh to pass after this, the sons of Moab have come in, and the sons of Ammon, and with them of the peoples, against Jehoshaphat to battle.
Psalm 2:1
Why have nations tumultuously assembled? And do peoples meditate vanity?
Psalm 83:2
For, lo, Thine enemies do roar, And those hating Thee have lifted up the head,
Proverbs 11:21
Hand to hand, the wicked is not acquitted, And the seed of the righteous hath escaped.
Isaiah 8:9
Be friends, O nations, and be broken, And give ear, all ye far off ones of earth, Gird yourselves, and be broken, Gird yourselves, and be broken.
Isaiah 54:15
Lo, he doth diligently assemble without My desire, Who hath assembled near thee? By thee he falleth!
Joel 3:9
Proclaim ye this among nations, Sanctify a war, stir up the mighty ones, Come nigh, come up, let all the men of war.
Acts 4:26
the kings of the earth stood up, and the rulers were gathered together against the Lord and against His Christ;
Revelation 16:14
for they are spirits of demons, doing signs -- which go forth unto the kings of the earth, and of the whole world, to bring them together to the battle of that great day of God the Almighty; --
Revelation 20:8
and he shall go forth to lead the nations astray, that are in the four corners of the earth -- Gog and Magog -- to gather them together to war, of whom the number is as the sand of the sea;

General references

Joshua 10:5
And five kings of the Amorite (the king of Jerusalem, the king of Hebron, the king of Jarmuth, the king of Lachish, the king of Eglon) are gathered together, and go up, they and all their camps, and encamp against Gibeon, and fight against it.