'Nations' in the Bible

If You kill this people with a single blow, the nations that have heard of Your fame will declare,

I see them from the top of rocky cliffs,and I watch them from the hills.There is a people living alone;it does not consider itself among the nations.

God brought him out of Egypt;He is like the horns of a wild ox for them.He will feed on enemy nationsand gnaw their bones;he will strike them with his arrows.

Then Balaam saw Amalek and proclaimed his poem:Amalek was first among the nations,but his future is destruction.