Ecclesiastes 9:10

8 Let your garments always be white, and never spare the oil for your head.

9 Enjoy life with your beloved wife all the days of the fleeting life that God has given you under the sun—all your fleeting days. For this is your portion in life and in your labor under the sun.

Whatever you find to do with your hands, do it with all your might, for in Sheol, where you are going, there is no work or planning or knowledge or wisdom.

11 I saw something else under the sun: The race is not to the swift, nor the battle to the strong; neither is the bread to the wise, nor the wealth to the intelligent, nor the favor to the skillful. For time and chance happen to all.

12 For surely no man knows his time: Like fish caught in a cruel net or birds trapped in a snare, so men are ensnared in an evil time that suddenly falls upon them.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
Whatever you find to do with your hands, do it with all your might, for in Sheol, where you are going, there is no work or planning or knowledge or wisdom.
KJV
Whatsoever thy hand findeth to do, do it with thy might; for there is no work, nor device, nor knowledge, nor wisdom, in the grave, whither thou goest.
WEB
Whatever your hand finds to do, do it with your might; for there is no work, nor plan, nor knowledge, nor wisdom, in Sheol, where you are going.
ASV
Whatsoever thy hand findeth to do, do [it] with thy might; for there is no work, nor device, nor knowledge, nor wisdom, in Sheol, whither thou goest.
DARBY
Whatever thy hand findeth to do, do with thy might; for there is no work, nor device, nor knowledge, nor wisdom, in Sheol, whither thou goest.
BLB
All that your hand finds to do, with your strength you must do [it], for [there is] no work or plan or knowledge or wisdom in Sheol, there where you are going.
ÅB
Alt det din hånd er i stand til å gjøre med din kraft, det skal du gjøre! For det finnes hverken gjerning eller klokskap eller kunnskap eller visdom i dødsriket, dit du går.
OTB
Hva enn din hånd finner å gjøre, gjør det med all din makt, for i Sheol, hvor du går, er det verken aktivitet eller planlegging eller kunnskap eller visdom.
B1930
Alt det din hånd er i stand til å gjøre med din kraft, det skal du gjøre! For det finnes hverken gjerning eller klokskap eller kunnskap eller visdom i dødsriket, dit du går.

Study notes (Tyndale)

Original text and word study

Cross references