'Trench' in the Bible

and they go in and lay siege against him, in Abel of Beth-Maachah, and cast up a mount against the city, and it standeth in a trench, and all the people who are are with Joab are destroying, to cause the wall to fall.

and he buildeth with the stones an altar, in the name of Jehovah, and maketh a trench, as about the space of two measures of seed, round about the altar.

and the water goeth round about the altar, and also, the trench he hath filled with water.

And there falleth a fire of Jehovah, and consumeth the burnt-offering, and the wood, and the stones, and the dust, and the water that is in the trench it hath licked up.