Bible Verses About Unbelief: Questioning the power of God

Then a prince, on whose hande the King leaned, answered the man of God, and saide, Though the Lord would make windowes in the heauen, could this thing come to passe? And he said, Beholde, thou shalt see it with thine eyes, but thou shalt not eate thereof.

They spake against God also, saying, Can God prepare a table in the wildernesse?

Behold, he smote the rocke, that the water gushed out, and the streames ouerflowed: can hee giue bread also? or prepare flesh for his people?