'Staff' in the Bible

Then he said to Gehazi, "Gird up your loins and take my staff in your hand and go. If you meet anyone, you must not greet them; if anyone greets you, you must not answer them. You must put my staff on the face of the boy."

Gehazi crossed over before them, and he put the staff on the face of the boy; but there was no sound, and there was no sign of life, so he returned to meet him. He told him, saying, "The boy did not wake up."

Now, look! You {rely} on the staff of this broken reed, on Egypt, which [when] a man leans on it, it goes into his hand and pierces it! So [is] Pharaoh the king of Egypt for all who are trusting on him!