'Nations' in the Bible

Let the priests, the servants of the Lord, be weeping between the covered way and the altar, and let them say, Have mercy on your people, O Lord, do not give up your heritage to shame, so that the nations become their rulers: why let them say among the peoples, Where is their God?

And the Lord made answer and said to his people, See, I will send you grain and wine and oil in full measure: and I will no longer let you be shamed among the nations:

I will get together all the nations, and make them come down into the valley of Jehoshaphat; and there I will take up with them the cause of my people and of my heritage Israel, whom they have sent wandering among the nations, and of my land which has been parted by them.

Give this out among the nations; make ready for war: get the strong men awake; let all the men of war come near, let them come up.

Come quickly, all you nations round about, and get yourselves together there: make your strong ones come down, O Lord.

Let the nations be awake, and come to the valley of Jehoshaphat: for there I will be seated as judge of all the nations round about.