Who knoweth the spirit of man - I think the meaning of this important verse is well taken by the above able writer: -
The nobler part of man, 'tis true, survives
The frail corporeal frame: but who regards
The difference? Those who live like beasts, as such
Would die, and be no more, if their own fate
Depended on themselves. Who once reflects,
Amidst his revels, that the human soul,
Of origin celestial, mounts aloft,
While that of brutes to earth shall downward go?"
The word רוח ruach, which is used in this and the nineteenth verse, has two significations, breath and spirit. It signifies spirit, or an incorporeal substance, as distinguished from flesh, or a corporeal one, 1 Kings 22:21, 1 Kings 22:22, and Isaiah 31:3. And it signifies the spirit or soul of man, Psalm 31:6; Isaiah 57:16, and in this book, Ecclesiastes 12:7, and in many other places. In this book it is used also to signify the breath, spirit, or soul of a beast. While it was said in verse 19, they have all one breath, i.e., the man and the beast live the same kind of animal life; in this verse, a proper distinction is made between the רוח ruach, or soul of man, and the רוח ruach, or soul of the beast: the one goeth upwards, the other goeth downwards. The literal translation of these important words is this: "Who considereth the רוח ruach ) immortal spirit of the sons of Adam, which ascendeth? it is from above; (למעלה היא hi lemalah ); and the spirit or breath of the cattle which descendeth? it is downwards unto the earth," i.e., it tends to the earth only. This place gives no countenance to the materiality of the soul; and yet it is the strongest hold to which the cold and fruitless materialist can resort.
Solomon most evidently makes an essential difference between the human soul and that of brutes. Both have souls, but of different natures: the soul of man was made for God, and to God it shall return: God is its portion, and when a holy soul leaves the body, it goes to paradise. The soul of the beast was made to derive its happiness from this lower world. Brutes shall have a resurrection, and have an endless enjoyment in a new earth. The body of man shall arise, and join his soul that is already above; and both enjoy final blessedness in the fruition of God. That Solomon did not believe they had the same kind of spirit, and the same final lot, as some materialists and infidels say, is evident from Ecclesiastes 12:7; : "The spirit shall return unto God who gave it."
That great anomaly in the moral government of this world, the seemingly unequal distribution of rewards and punishments, will be rectified by God, who has future times and events under His control Ecclesiastes 3:16-17. As for people, they are placed by God, who is their teacher, in a humble condition, even on a level with inferior animals, by death, that great instance of their subjection to vanity Ecclesiastes 3:18-19, which reduces to its original form all that was made of the dust of the ground Ecclesiastes 3:20. And though the destinies of man and beast are different, yet in our present lack of knowledge as to God‘s future dealing with our spirits Ecclesiastes 3:21, man finds his portion (see the Ecclesiastes 2:10 note) in such labor and such joy as God assigns to him in his lifetime Ecclesiastes 3:22.
Ecclesiastes 3:16
I saw - Rather, I have seen (as in Ecclesiastes 3:10) under the sun the place etc. The place of judgment means the seat of the authorized judge. Compare “the place of the holy” Ecclesiastes 8:10.
Ecclesiastes 3:17
A time there - i. e., a time with God.
Ecclesiastes 3:18
literally, I said in my heart with regard to the sons of men, it is that God may prove them and show them that they are beasts, they themselves. “Showing” is the reading of the Septuagint and Syriac: the present Hebrew text reads “seeing.” The meaning is that the long delay of God‘s judgment Ecclesiastes 3:16-17 is calculated to show people that the brevity of their life renders them incapable of following out and understanding His distributive justice.
Ecclesiastes 3:19
That which befalleth the sons of men - literally, the event (happenstance) of the sons of men, i. e., what comes upon them from outside, by virtue of the ordinance of God. See the Ecclesiastes 2:14 note. Death in particular Ecclesiastes 3:2, Ecclesiastes 3:11 is a part of the “work that God doeth.”
Ecclesiastes 3:21
The King James Version of this verse is the only rendering which the Hebrew text, as now pointed, allows. It is in accordance with the best Jewish and many modern interpreters. A slightly different pointing would be requisite to authorize the translation, “Who knows the spirit of the sons of man whether it goes above, and, the spirit of the beast whether it goes down below?” etc., which, though it seems neither necessary nor suitable, is sanctioned by the Septuagint and other versions and by some modern interpreters.
Who knoweth - This expression (used also in Ecclesiastes 2:19; Ecclesiastes 6:12) does not necessarily imply complete and absolute ignorance. In Psalm 90:11, it is applied to what is partially understood: compare similar forms of expression in Proverbs 31:10; Psalm 94:16; Isaiah 53:1. Moreover, it is evident from marginal references that Solomon did not doubt the future existence and destination of the soul. This verse can only be construed as a confession of much ignorance on the subject.
Ecclesiastes 3:22
What shall be after him - i. e., What shall become of the results of his work after he is dead. Compare Ecclesiastes 2:19; Ecclesiastes 6:12.