Original Text
In the year five hundred, in the seventh month, on the fourteenth day of the month in the life of +Enoch+. In that Parable I saw how a mighty quaking made the heaven of heavens to quake, and the host of the Most High, and the angels, a thousand thousands and ten thousand times ten thousand, were disquieted with a great disquiet.
Simple English
In the five hundredth year, on the fourteenth day of the seventh month, during Enoch's lifetime, I saw in a vision the heavens above shaking violently. The armies of the Most High and countless angels were greatly disturbed.