'Flesh' in the Bible

My father imposed heavy demands on you; I will make them even heavier. My father punished you with ordinary whips; I will punish you with whips that really sting your flesh.'"

and followed the advice of the younger ones. He said, "My father imposed heavy demands on you; I will make them even heavier. My father punished you with ordinary whips; I will punish you with whips that really sting your flesh."

With him is an arm of flesh; but with us is the LORD our God to help us, and to fight our battles. And the people rested themselves upon the words of Hezekiah king of Judah.