"Then I continued to watch because of the boastful words the horn was speaking. I kept looking until the beast was slain and its body destroyed and thrown into the blazing fire." (NIV)
I looked then because of the sound of the great words which the horn was speaking. I watched until the beast was slain and its body destroyed and given over to be burned with fire. (AMP)
I beheld then because of the voice of the great words which the horn spake: I beheld even till the beast was slain, and his body destroyed, and given to the burning flame. (KJV)