'Open' in the Bible

The Ammonites came out and lined up for battle at the entrance of the [city] gate, but the Arameans of Zobah and Rehob and the men of Tob and Maacah were [stationed] by themselves in the field.

Uriah said to David, “The ark and Israel and Judah are staying in huts (temporary shelters), and my lord Joab and the servants of my lord are camping in the open field. Should I go to my house to eat and drink and lie with my wife? By your life and the life of your soul, I will not do this thing.”