'Alone' in the Bible

And the {Ammonites} went out and took up positions for battle at the entrance of the city. And the kings who had come [were] alone in the field.

Joab reported to David the number of warriors. In all Israel there were 1,100,000 sword-wielding soldiers; Judah alone had 470,000 sword-wielding soldiers.

Furthermore David the king said unto all the congregation, Solomon my son, whom alone God hath chosen, is yet young and tender, and the work is great: for the palace is not for man, but for the LORD God.