KJV:
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?
NASB:
I have seen that nothing is better than that man should be happy in his activities, for that is his lot. For who will bring him to see what will occur after him?
KJV:
Yea, better is he than both they, which hath not yet been, who hath not seen the evil work that is done under the sun.
NASB:
But better off than both of them is the one who has never existed, who has never seen the evil activity that is done under the sun.
KJV:
Again, I considered all travail, and every right work, that for this a man is envied of his neighbour. This is also vanity and vexation of spirit.
NASB:
I have seen that every labor and every skill which is done is the result of rivalry between a man and his neighbor. This too is vanity and striving after wind.
KJV:
Suffer not thy mouth to cause thy flesh to sin; neither say thou before the angel, that it was an error: wherefore should God be angry at thy voice, and destroy the work of thine hands?
NASB:
Do not let your speech cause you to sin and do not say in the presence of the messenger of God that it was a mistake. Why should God be angry on account of your voice and destroy the work of your hands?
KJV:
Consider the work of God: for who can make that straight, which he hath made crooked?
NASB:
Consider the work of God, For who is able to straighten what He has bent?
KJV:
All this have I seen, and applied my heart unto every work that is done under the sun: there is a time wherein one man ruleth over another to his own hurt.
NASB:
All this I have seen and applied my mind to every deed that has been done under the sun wherein a man has exercised authority over another man to his hurt.
KJV:
Because sentence against an evil work is not executed speedily, therefore the heart of the sons of men is fully set in them to do evil.
NASB:
Because the sentence against an evil deed is not executed quickly, therefore the hearts of the sons of men among them are given fully to do evil.
KJV:
There is a vanity which is done upon the earth; that there be just men, unto whom it happeneth according to the work of the wicked; again, there be wicked men, to whom it happeneth according to the work of the righteous: I said that this also is vanity.
NASB:
There is futility which is done on the earth, that is, there are righteous men to whom it happens according to the deeds of the wicked. On the other hand, there are evil men to whom it happens according to the deeds of the righteous. I say that this too is futility.
KJV:
Then I beheld all the work of God, that a man cannot find out the work that is done under the sun: because though a man labour to seek it out, yet he shall not find it; yea further; though a wise man think to know it, yet shall he not be able to find it.
NASB:
and I saw every work of God, I concluded that man cannot discover the work which has been done under the sun. Even though man should seek laboriously, he will not discover; and though the wise man should say, "I know," he cannot discover.