'Intensity' in the Bible

“Therefore, son of man, prophesy and strike your hands together; and let the sword be doubled the third time [in intensity], the sword for the slain. It is the sword for the great slaughter which surrounds them [so that no one can escape, even by hiding in their inner rooms],

But since I could not see because of the [glorious intensity and dazzling] brightness of that light, I was led by the hand by those who were with me and came into Damascus.