Ecclesiastes 3:21 in the World English Bible
Who knows the spirit of man, whether it goes upward, and the spirit of the animal, whether it goes downward to the earth?”
Context
20 All go unto one place; all are of the dust, and all turn to dust again.
21 Who knoweth the spirit of man that goeth upward, and the spirit of the beast that goeth downward to the earth?
22 Wherefore I perceive that there is nothing better, than that a man should rejoice in his own works; for that is his portion: for who shall bring him to see what shall be after him?