'Millstone' in the Bible

but whoever causes one of these little ones who believe in Me to stumble, it would be better for him to have a heavy millstone hung around his neck, and to be drowned in the depth of the sea.

“Whoever causes one of these little ones who believe to stumble, it would be better for him if, with a heavy millstone hung around his neck, he had been cast into the sea.

It would be better for him if a millstone were hung around his neck and he were thrown into the sea, than that he would cause one of these little ones to stumble.

Then a strong angel took up a stone like a great millstone and threw it into the sea, saying, “So will Babylon, the great city, be thrown down with violence, and will not be found any longer.