'Flask' in the Bible

Elisha responded, "What shall I do for you? Tell me what you have in your house." She replied, "Your servant has nothing in the entire house except for a flask of oil."

The prophet Elisha called one of the sons of the prophets and said, “Tuck your mantle under your belt, take this flask of oil with you, and go to Ramoth-gilead.

Then, take the flask of oil, pour it on his head, and say, ‘This is what the Lord says: “I anoint you king over Israel.”’ Open the door and escape. Don’t wait.”