1 Kings 18:35

The water flowed around the altar, and he also filled the trench with water.

1 Kings 18:32

So with the stones Elijah built an altar in the name of the Lord. He made a trench around the altar large enough to hold two measures of seed.

1 Kings 18:38

Then the fire of the Lord fell and consumed the burnt offering and the wood, and even the stones and the dust; it also licked up the water in the trench.

Treasury of Scripture Knowledge

Summary

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

The trench

Bible References

The trench

1 Kings 18:32
So with the stones Elijah built an altar in the name of the Lord. He made a trench around the altar large enough to hold two measures of seed.