'Extremity' in the Bible

And He will send out His angels with a loud trumpet-blast, and they will bring together His own People to Him from north, south, east and west--from one extremity of the world to the other.

The Queen of the South will awake at the Judgement together with the men of the present generation, and will condemn them; because she came from the extremity of the earth to hear the wisdom of Solomon; but mark! One greater than Solomon is here.