I watched because of the voice of the great words which that horn was speaking, and I saw that the beast had been destroyed, and its body was ruined and had been handed over to be burnt with fire
Other versions
King James Version
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.English Standard Version
I looked then because of the sound of the great words that the horn was speaking. And as I looked, the beast was killed, and its body destroyed and given over to be burned with fire.New International Version
"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.