'Ground' in the Bible

The people went about, and gathered it, and ground it with hand-mills, or beat it in mortars, and boiled it in pots, and made cakes of it; and the taste of it was as the taste of oil-cakes.

but if Jehovah make a new thing, and the ground open its mouth, and swallow them up, and all that they have, and they go down alive into Sheol, then ye shall know that these men have despised Jehovah.

And it came to pass when he had ended speaking all these words, that the ground clave apart that was under them.