Ecclesiastes 9:5

3 This is an evil in everything that is done under the sun: There is one fate for everyone. Furthermore, the hearts of men are full of evil and madness while they are alive, and afterward they join the dead.

4 There is hope, however, for anyone who is among the living; for even a live dog is better than a dead lion.

For the living know that they will die, but the dead know nothing. They have no further reward, because the memory of them is forgotten.

6 Their love, their hate, and their envy have already vanished, and they will never again have a share in all that is done under the sun.

7 Go, eat your bread with joy, and drink your wine with a cheerful heart, for God has already approved your works:

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

Compare

BSB
For the living know that they will die, but the dead know nothing. They have no further reward, because the memory of them is forgotten.
KJV
For the living know that they shall die: but the dead know not any thing, neither have they any more a reward; for the memory of them is forgotten.
WEB
For the living know that they will die, but the dead don’t know anything, neither do they have any more a reward; for their memory is forgotten.
ASV
For the living know that they shall die: but the dead know not anything, neither have they any more a reward; for the memory of them is forgotten.
DARBY
For the living know that they shall die; but the dead know not anything, neither have they any more a reward, for the memory of them is forgotten.
BLB
for the living know that they will die, and the dead cannot know anything, and there is not anymore for them a reward, for the memory of them is forgotten.
ÅB
for de levende vet at de skal dø, men de døde vet ikke noen ting, og de får ikke lenger noen lønn, for minnet om dem er glemt.
OTB
De levende vet at de skal dø, men de døde vet ingenting; de har ingen videre belønning, og selv deres minne er glemt.
B1930
for de levende vet at de skal dø, men de døde vet ikke nogen ting, og de får ikke lenger nogen lønn, for minnet om dem er glemt.

Study notes (Tyndale)

Original text and word study

Cross references