'Vulnerable' in the Bible

Then Joseph remembered the dreams he had dreamed about them, and he said to them, "You are spies; you have come to see if our land is vulnerable!"

"No," he insisted, "but you have come to see if our land is vulnerable."

She made him go to sleep on her lap and then called a man in to shave off the seven braids of his hair. She made him vulnerable and his strength left him.

A wise person's good sense protects him, but a fool's lack of sense leaves him vulnerable.