Job 10:1 (ESV)

1 “I loathe my life; I will give free utterance to my complaint; I will speak in the bitterness of my soul.

Job stands on his own, without the support of his wife or his friends, apparently deserted even by God. Since his life is worth nothing to him anymore, he is not afraid of losing it through venturing to address God. This is what he now does; the complaint about God in chapter 9 now becomes a prayer to God. He will not hold back anything he feels; he will speak straight out of the bitterness of my soul. In the process, he will again say things that he will later regret (Job 42:6).