Millstone

No man shall take the nether or the upper millstone to pledge: for he taketh a man's life to pledge.

But whoso shall offend one of these little ones which believe in me, it were better for him that a millstone were hanged about his neck, and that he were drowned in the depth of the sea.

And whosoever shall offend one of these little ones that believe in me, it is better for him that a millstone were hanged about his neck, and he were cast into the sea.

It were better for him that a millstone were hanged about his neck, and he cast into the sea, than that he should offend one of these little ones.

And a certain woman cast a piece of a millstone upon Abimelech's head, and all to brake his skull.

His heart is as firm as a stone; yea, as hard as a piece of the nether millstone.