'Themselves' in the Bible

‘Its foliage was beautiful and its fruit abundant,And in it was food for all.The beasts of the field found shade under it,And the birds of the sky dwelt in its branches,And all living creatures fed themselves from it.

Now I, Daniel, alone saw the vision, while the men who were with me did not see the vision; nevertheless, a great dread fell on them, and they ran away to hide themselves.

“Now in those times many will rise up against the king of the South; the violent ones among your people will also lift themselves up in order to fulfill the vision, but they will fall down.