21 Who knows if the human spirit rises upward and if the spirit of the animal goes down into the earth?”

Read Ecclesiastes 3:21 Using Other Translations

Who knoweth the spirit of man that goeth upward, and the spirit of the beast that goeth downward to the earth?
Who knows whether the spirit of man goes upward and the spirit of the beast goes down into the earth?
For who can prove that the human spirit goes up and the spirit of animals goes down into the earth?