Oil in the Bible often represents the Holy Spirit. Jesus promised that the Comforter, the Holy Spirit would come and spoke of the Holy Spirit as necessary for God's people especially in these last days. Yet many people are confused about the work of the Holy Spirit and who the Holy Spirit is and what important work He is involved in our lives. If we don't understand this correctly, the devil will bring about counterfeit revivals that isn't of the Holy Spirit at all. It's best to go to the Bible to discover the truth.