What are some examples of rhetorical questions from the Bible?

Are rhetorical questions not used often in the Bible?

See explanation for some examples...

Isaiah uses some rhetorical questions when ridiculing the worship of idols. My favourite example is in Isaiah 44:19 where he says:

"Shall I bow down to a block of wood?"

Does not satan use rhetorical questions in his conversation with God in Job 1:9-10?

"Does Job fear God for no reason? Have you not put a hedge around him and his house and all that he has, on every side?"

In Romans 6:1, Paul asks:

"Shall we sin to our heart's content and see how far we can exploit the grace of God?"