'Oil' in the Bible

Is there no life-giving oil in Gilead? is there no expert in medical arts? why then have my people not been made well?

Therefore they shall come and sing in the height of Zion, and shall flow together to the goodness of the LORD, for wheat, and for wine, and for oil, and for the young of the flock and of the herd: and their soul shall be as a watered garden; and they shall not sorrow any more at all.

As for me, behold, I will dwell at Mizpah to serve the Chaldeans, which will come unto us: but ye, gather ye wine, and summer fruits, and oil, and put them in your vessels, and dwell in your cities that ye have taken.

But ten men were found among them that said unto Ishmael, Slay us not: for we have treasures in the field, of wheat, and of barley, and of oil, and of honey. So he forbare, and slew them not among their brethren.

Go up to Gilead and take sweet oil, O virgin daughter of Egypt: there is no help in all your medical arts; nothing will make you well.

Sudden is the downfall of Babylon and her destruction: make cries of grief for her; take sweet oil for her pain, if it is possible for her to be made well.