'Hollow' in the Bible
You are to make it hollow out of boards just as it was shown you on the mountain, that's how they are to make it."
And he put the poles through rings on the sides of the altar to carry it. He made it hollow, out of boards.
So God split a hollow place that's in Lehi, and water sprang out of it. After he had taken a drink, his strength returned, and he revived. That's why it was named "En-hakkore," which is in Lehi to this day.
"Who has measured the waters of the sea in the hollow of his hand and marked off the heavens by the width of his hand? Who has enclosed the dust of the earth in a measuring bowl, or weighed the mountains in scales and the hills in a balance?