I think it is possible to be angry at God without having sinned. Look at the examples of David in the Psalms. In places he sounds angry.
Psalm 10:
Now go back to what Joseph_Botwinick posted from Job and contrast. If you back up to Job 31, which is the the last place I find Job talking, he is full of self-rightousness. Job goes on for a long time about how good a person he is.
Job 31:9-12
Psalm 10:
But later onWhy, O LORD , do you stand far off? Why do you hide yourself in times of trouble?
Again in Psalm 13:But you, O God, do see trouble and grief; you consider it to take it in hand. The victim commits himself to you; you are the helper of the fatherless...The LORD is King for ever and ever; the nations will perish from his land. You hear, O LORD , the desire of the afflicted; you encourage them, and you listen to their cry, defending the fatherless and the oppressed, in order that man, who is of the earth, may terrify no more.
and laterHow long, O LORD ? Will you forget me forever? How long will you hide your face from me? How long must I wrestle with my thoughts and every day have sorrow in my heart? How long will my enemy triumph over me.
One last example, Psalm 22:But I trust in your unfailing love; my heart rejoices in your salvation.
butMy God, My God, why have You forsaken Me? Why are You so far from helping Me, And from the words of My groaning? O My God, I cry in the daytime, but You do not hear; And in the night season, and am not silent.
David sounds to me to be angry at God, along with a whole lot of other emotions, but the way he keeps saying how powerful God is and how much he trusts in God tells me that he was not in sin.I will declare Your name to My brethren; In the midst of the assembly I will praise You.
Now go back to what Joseph_Botwinick posted from Job and contrast. If you back up to Job 31, which is the the last place I find Job talking, he is full of self-rightousness. Job goes on for a long time about how good a person he is.
Job 31:9-12
This is just an example of the tone of the whole chapter. To me, Job seems to be trying to say that he could understand what happened to him if he had done something really bad. But that since he was a pretty good person, God should have not let it happen. He doesn't get that no man is good enough and so God rebukes him. Job was angry and in sin.If my heart has been enticed by a woman, Or if I have lurked at my neighbor's door, Then let my wife grind for another, And let others bow down over her. For that would be wickedness; Yes, it would be iniquity deserving of judgment. For that would be a fire that consumes to destruction, And would root out all my increase.