'Surface' in the Bible

Uriah said to David, "The ark and Israel and Judah [are] living in the booths; and my lord Joab and the servants of my lord [are] camping on the surface of the open field; and I, shall I go to my house to eat and to drink and to sleep with my wife? [By] your life and the life of your soul, I surely will not do this thing."

The battle there was spreading over the surface of all the land, and {the forest devoured more among the army than} the sword [did] on that day.