'Covering' in the Bible

They destroyed the [walls of the] cities, and each man threw a stone on every piece of good land, covering it [with stones]. And they stopped up all the springs of water and cut down all the good trees, until they left nothing in Kir-hareseth [Moab’s capital city] but its stones. Then the [stone] slingers surrounded the city and destroyed it.

But the very next day, Hazael grabbed a thick covering, soaked it in water, and spread it over the king's face, and he suffocated. Then Hazael succeeded Ben-hadad as king.

The covering for the Sabbath which they had built in the palace and in the entrance of the king to the outside, he removed [from] the temple of Yahweh because of the presence of the king of Assyria.

When King Hezekiah heard Eliakim's report, he tore his clothes, put on a sackcloth covering, entered the LORD's Temple,

and sendeth Eliakim, who is over the house, and Shebna the scribe, and the elders of the priests, covering themselves with sackcloth, unto Isaiah the prophet, son of Amoz,