Log
Definition and Size
The log was the smallest liquid measurement in the Hebrew system of weights and measures. It equaled approximately one-third of a liter (about 0.3 liters) or roughly two-thirds of a US pint. The Hebrew word comes from a root meaning "deepened" or "hollowed out," likely referring to the small hollow vessel used to measure this quantity. The log served as the base unit from which larger liquid measures were calculated: twelve logs made one hin, and seventy-two logs made one bath.
Biblical Usage in Leviticus 14
The log appears exclusively in Leviticus 14:10-24, which describes the elaborate purification ceremony for a person healed from a skin disease (traditionally translated "leprosy"). The healed person was required to bring, among other offerings, one log of oil. This oil played a central role in the ritual: the priest would dip his right finger in the oil and sprinkle it seven times before the Lord (Leviticus 14:16), then apply some to the right ear, right thumb, and right big toe of the person being cleansed (Leviticus 14:17), and pour the remainder on the person's head (Leviticus 14:18).
For those who could not afford the full offering, a modified version still required one log of oil (Leviticus 14:21), demonstrating that this element was essential regardless of one's economic circumstances.
The Purification Ritual
The ceremony in which the log of oil was used was one of the most detailed rituals in the Levitical code. Skin diseases rendered a person ceremonially unclean and excluded from the community (Leviticus 13:45-46). When healing occurred, the restoration process took eight days and involved multiple sacrifices, washings, and the specific application of blood and oil.
The log of oil, applied after sacrificial blood, symbolized consecration, healing, and the restoration of the person to full participation in the covenant community. The application to the ear, thumb, and toe — the same pattern used in priestly consecration (Exodus 29:20) — signified that the cleansed person was being rededicated to God.
Hebrew Measurement System
The Hebrew system of liquid measures was organized in a hierarchy: the log was the smallest unit, the hin equaled twelve logs, and the bath equaled six hins (or seventy-two logs). The bath was roughly equivalent to 22 liters. This system was used throughout Israel's history for both sacred and commercial purposes. The precision of these measurements reflected the importance placed on exactness in worship and trade.
Significance of Precise Measurements in Worship
God's specification of exactly one log of oil for the purification ritual illustrates the careful attention to detail in Israelite worship. Nothing in the sacrificial system was left to improvisation. The precise quantity ensured uniformity and obedience, teaching Israel that approaching God required reverence and adherence to his instructions (Leviticus 10:1-3).
Biblical Context
The log appears in Leviticus 14:10, 12, 15, 21, and 24, always in connection with the purification ceremony for someone healed from a skin disease. It specifies the quantity of oil required for the ritual application by the priest. This is the only biblical context where this specific measurement is named.
Theological Significance
The log of oil in the purification ritual symbolizes God's precise care in restoring the unclean to full fellowship. The exact measurement reflects the principle that worship must follow God's prescribed pattern. The application of oil after blood in the ritual points to consecration following atonement, a pattern that finds its fulfillment in the New Testament concepts of redemption and sanctification.
Historical Background
The log was part of a standardized Hebrew measurement system that had parallels across the ancient Near East. Mesopotamian and Egyptian civilizations also used hierarchical liquid measurement systems. Archaeological discoveries of measuring vessels from ancient Israel help confirm the approximate sizes of biblical measures. The Talmud later defined the log precisely as the volume of six eggs.