'Nations' in the Bible

'And Thou hast put to death this people as one man, and the nations who have heard Thy fame have spoken, saying,

For from the top of rocks I see it, And from heights I behold it; Lo a people! alone it doth tabernacle, And among nations doth not reckon itself.

God is bringing him out of Egypt; As the swiftness of a Reem is to him, He eateth up nations his adversaries, And their bones he breaketh, And with his arrows he smiteth,