'Open' in the Bible

Look! I am raising up the Chaldeans,that bitter, impetuous nationthat marches across the earth’s open spacesto seize territories not its own.

For this cause his net is ever open, and there is no end to his destruction of the nations.

You went forth for the salvation of Your people,For the salvation of Your anointed.You struck the head of the house of the evilTo lay him open from thigh to neck. Selah.