In this meaningless life of mine I have seen both of these: the righteous perishing in their righteousness, and the wicked living long in their wickedness.
NIV
I have seen everything in the days of my vanity (my emptiness, falsity, vainglory, and futility): there is a righteous man who perishes in his righteousness, and there is a wicked man who prolongs his life in [spite of] his evildoing.
AMP
All things have I seen in the days of my vanity: there is a just man that perisheth in his righteousness, and there is a wicked man that prolongeth his life in his wickedness.
KJV
Whatever exists is far off and most profound – who can discover it?
NIV
That which is is far off, and that which is deep is very deep--who can find it out [true wisdom independent of the fear of God]? [Job 28:12-28; I Cor. 2:9-16.]AMP
That which is far off, and exceeding deep, who can find it out?
KJV
Do not be overrighteous, neither be overwise – why destroy yourself?
NIV
Be not [morbidly exacting and externally] righteous overmuch, neither strive to make yourself [pretentiously appear] overwise--why should you [get puffed up and] destroy yourself [with presumptuous self-sufficiency]?
AMP
Be not righteous over much; neither make thyself over wise: why shouldest thou destroy thyself ?
KJV
It is better to go to a house of mourning than to go to a house of feasting, for death is the destiny of everyone; the living should take this to heart.
NIV
It is better to go to the house of mourning than to go to the house of feasting, for that is the end of all men; and the living will lay it to heart.
AMP
It is better to go to the house of mourning, than to go to the house of feasting: for that is the end of all men; and the living will lay it to his heart.
KJV
So I turned my mind to understand, to investigate and to search out wisdom and the scheme of things and to understand the stupidity of wickedness and the madness of folly.
NIV
I turned about [penitent] and my heart was set to know and to search out and to seek [true] wisdom and the reason of things, and to know that wickedness is folly and that foolishness is madness [and what had led me into such wickedness and madness].
AMP
I applied mine heart to know, and to search, and to seek out wisdom, and the reason of things, and to know the wickedness of folly, even of foolishness and madness:
KJV