'Shortened' in the Bible

Wherefore, when I came, was there no man? when I called, was there none to answer? Is my hand shortened at all, that it cannot redeem? or have I no power to deliver? behold, at my rebuke I dry up the sea, I make the rivers a wilderness: their fish stinketh, because there is no water, and dieth for thirst.

Behold, the LORD'S hand is not shortened, that it cannot save; neither his ear heavy, that it cannot hear: