'Trench' in the Bible

and he built an altar with the stones in the name of Yahweh. Then he made a trench around the altar large enough to hold about four gallons.

So the water ran all around the altar; he even filled the trench with water.

Then Yahweh’s fire fell and consumed the burnt offering, the wood, the stones, and the dust, and it licked up the water that was in the trench.