'Sifter' in the Bible

'I was looking, in the visions of my head on my bed, and lo, a sifter, even a holy one, from the heavens is coming down.

and that which the king hath seen -- a sifter, even a holy one, coming down from the heavens, and he hath said, Cut down the tree, and destroy it; but the stump of its roots leave in the earth, even with a band of iron and brass, in the tender grass of the field, and with the dew of the heavens it is wet, and with the beast of the field is his portion, till that seven times pass over him.