The document discusses essential oils in the Bible based on two passages from the gospels of Mark and John. It describes how Mary anointed Jesus's feet with spikenard oil, which was very costly and filled the house with its odor due to its small molecular structure. A second account from Mark tells how another woman broke an alabaster box of precious spikenard oil and poured it on Jesus's head, which was kept in an airtight container for anointing. The document examines these biblical passages to glean basic characteristics of essential oils, such as their medicinal uses, costly production, ceremonial anointing practices, susceptibility to degradation, and storage requirements.