'Arisen' in the Bible

For the arrogant have arisen against me; oppressors have sought to take my life. They do not keep God in mind! Interlude

Also, I wanted to learn the significance of the ten horns on its head and the other horn that had arisen, before which three of them had fallen that is, the horn with eyes and a mouth that uttered magnificent things and which was greater in appearance than its fellows.