John Trapp on Job 7:21

Verſe 21. And why dost thou not pardon my tranſgreſſion] Heb. Lift up or take away: for ſin was Job[illegible: 1 letter] greateſt burden, which therefore he prayeth to God to pardon: and that not in heaven only, but in his own conſcience: and then no darkneſs can be ſo deſolate, no croſs ſo cutting, no burden ſo importable, but he ſhall by Gods grace, be able to deal with it. Hence this vehement expoſtulation of his for remiſſion and removal of ſin firſt, and then of its evil conſequents; for pardon of ſinne is a voluminous mercy; and being juſtified by faith we can glory in tribulation Rom. 5.1, 3.

For now ſhall I ſleep in the duſt] In the duſt of death: Pſal. 22.15. and therefore muſt have help preſently, or not at all: ſith a man once departed is no more to be found in this world, though never ſo diligently ſought for. See verſe 7, 8. One paraphraſeth theſe words thus, For now I ſhall die, and then when thou lookeſt to receive thy morning ſacrifice of praiſe as aforetime, I ſhall not be found to give it thee.