In response to the rain of rockets on Sderot and the Western Negev: "Hamas will be surprised by the force of our response".
Let us review this again, shall we? If you tell us in advance, it is not a surprise. Really, it is not so complicated.
Though, in all fairness, it is true that everyone, Israeli and Hamas-i alike, will be completely surprised if the government actually does something to stop the rockets. As in, apart from talking about it and expressing sympathy and/or solidarity.