ANSWER: Yes; they were all companions of the Bride, all had brightly burning lamps or torches, all up to a certain time were fully prepared to meet the Bridegroom. The moral of the parable is the blessedness of endurance unto the end through the faith which secures and preserves the fullness of the Holy Spirit of whom olive oil is the emblem (Zech. 4:3-14, I John 2:20, 27), and the sad failure of some to secure a full preparation for the future exigencies of the spiritual life. See Matt. 13:3-7.
— Steele's Answers p. 187.