'Under His Feet' in the Bible

After this, I required diligently to know the truth concerning the fourth beast, which was so far unlike the other beasts, and so horrible: whose teeth were of iron, and his nails of brass: which devoured and destroyed, and stamped the residue under his feet.

And I saw him come right up to the sheep, and he was moved with wrath against him, attacking the sheep so that his two horns were broken; and the sheep had not strength to keep his place before him, but was pushed down on the earth and crushed under his feet: and there was no one to get the sheep out of his power.