'Trench' in the Bible

And with the stones he built an altar in the name of Jehovah; and he made a trench about the altar, as great as would contain two measures of seed.

And the water ran round about the altar; and he filled the trench also with water.

Then the fire of Jehovah fell, and consumed the burnt-offering, and the wood, and the stones, and the dust, and licked up the water that was in the trench.