'Grave' in the Bible

To you I call, O Lord,My rock, do not be deaf to me,For if You are silent to me,I will become like those who go down to the pit (grave).

O Lord, You have brought my life up from Sheol (the nether world, the place of the dead);You have kept me alive, so that I would not go down to the pit (grave).

“What profit is there in my blood (death), if I go down to the pit (grave)?Will the dust praise You? Will it declare Your faithfulness [to man]?

So that he should live on eternally,That he should never see the pit (grave) and undergo decay.

I am counted among those who go down to the pit (grave);I am like a man who has no strength [a mere shadow],

Cast away [from the living] and abandoned among the dead,Like the slain who lie in a [nameless] grave,Whom You no longer remember,And they are cut off from Your hand.

Will Your lovingkindness be declared in the graveOr Your faithfulness in Abaddon (the underworld)?

Lover and friend You have placed far from me;My familiar friends are in darkness.

Answer me quickly, O Lord, my spirit fails;Do not hide Your face from me,Or I will become like those who go down into the pit (grave).