Job 34

"Teach me what I do not see;
If I have done iniquity, I will do no more’?
33 Should He repay it according to your terms,
Just because you disavow it?
You must choose, and not I;
Therefore speak what you know." vv.32-33

Read chapter 34
Job's answers were always in the place of a hypothetical form than a positive confession of sin.  How often do we do and hear that today, of making sin a hypothetical situation to see what the outcome is to fess up to it or not.  We get stuck in the thought of having to sound or look righteous and can even deceive ourselves that we are justified.  Yet God is not going to repay according to our terms as Elihu describes throughout this chapter, i.e. He will never pervert justice (v.12).  Elihu challenges Job in that it's up to him to choose how he will respond and speak if he has a continued complaint or defense.  From what Job knows already of God, he should realize than letting his own self and pride get in the way.  
When was a time you used a hypothetical situation to cover up sin?