Matthew 18:6

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

Revelation 18:21

And a mighty angel took up a stone like a great mill-stone, and cast it into the sea, saying, Thus with violence shall Babylon, the great city, be thrown down, and shall be found no more at all.

Treasury of Scripture Knowledge

Summary

The depths have covered them: they sank into the bottom as a stone.

Depths

Bible References

Depths

Matthew 18:6
But whoso shall offend one of these little ones that believe in me, it were better for him that a milstone were hanged about his neck, and he were drowned in the depth of the sea.

They

Revelation 18:21
And a mighty angel took up a stone like a great mill-stone, and cast it into the sea, saying, Thus with violence shall Babylon, the great city, be thrown down, and shall be found no more at all.