'Enclosing' in the Bible

he decided, together with his officers and his soldiers, to stop up the water [supply] from the springs which were outside the city [by enclosing them with masonry and concealing them], and they helped him.

“He has inscribed a circular limit (the horizon) on the face of the watersAt the boundary between light and darkness.

They do all their deeds to be seen by men; for they make their phylacteries (tefillin) wide [to make them more conspicuous] and make their tassels long.