'Flask' in the Bible

Now Elisha the prophet called one of the sons of the prophets and said to him, “Gird up your loins, and take this flask of oil in your hand and go to Ramoth-gilead.

Then take the flask of oil and pour it on his head and say, ‘Thus says the Lord, “I have anointed you king over Israel.”’ Then open the door and flee and do not wait.”