Caul
What Is a Caul in the Bible?
The term "caul" appears in older English Bible translations to describe internal body parts that held ritual or metaphorical significance. Though unfamiliar to modern readers, understanding these references sheds light on Israel's sacrificial system and the prophets' vivid imagery of spiritual hardness.
The Caul of the Liver in Levitical Sacrifice
The most frequent use of "caul" in Scripture refers to the large lobe or fatty flap of the liver, translated from the Hebrew yothereth. This portion of the animal's liver was specifically designated as part of the burnt offering, always mentioned alongside the kidneys and the surrounding fat (Exodus 29:13; Leviticus 3:4, 10, 15; 4:9; 7:4; 8:16, 25; 9:10, 19).
In the Levitical sacrificial system, these internal organs, the fat, the kidneys, and the caul of the liver, were considered the choicest parts of the animal. They were to be burned on the altar as an offering to the Lord, producing what Scripture calls "a pleasing aroma." The careful identification of these specific parts reflects the precision and intentionality God required in worship. Nothing was left to the worshiper's discretion; every detail of the offering was prescribed.
The Caul of the Heart in Hosea
A different Hebrew word, seghor, appears in Hosea 13:8, where it describes the covering or enclosure of the heart. The prophet uses fierce animal imagery to depict God's judgment: "I will tear open the covering of their heart" (Hosea 13:8). The word comes from a root meaning "to enclose" or "shut up," and likely refers to the pericardium, the protective membrane surrounding the heart.
Some interpreters, following Martin Luther, have understood this as a metaphor for a hardened heart, a heart enclosed and shut against God's grace, like a fortress sealed against influence. This reading intensifies the prophetic warning: Israel's stubborn refusal to repent has provoked God's fierce judgment.
The Significance of Internal Organs in Ancient Thought
In ancient Israelite understanding, internal organs were closely associated with the deepest aspects of human emotion and identity. The kidneys represented the innermost thoughts, the heart was the seat of will and decision, and the liver was connected to intense feeling. By requiring these organs in sacrifice, God was symbolically calling for the worshiper's whole inner life to be devoted to Him.
Connecting Sacrifice and Spiritual Wholeness
The dual usage of "caul" in Scripture, one liturgical, one prophetic, creates a meaningful connection. The sacrificial caul represents what God asks of His people: the offering of their inmost selves. The prophetic caul represents what happens when that offering is withheld: the heart becomes enclosed, sealed off from divine grace, and subject to judgment. Together, these passages call readers to open, wholehearted devotion rather than spiritual hardness.
Biblical Context
The caul of the liver appears frequently in the Pentateuch's sacrificial legislation, particularly in Exodus 29 and throughout Leviticus chapters 3, 4, 7, 8, and 9. It is always listed with the kidneys and fat as portions reserved for the Lord in burnt offerings. The caul of the heart appears in Hosea 13:8, within an oracle of judgment against Israel for its idolatry and stubbornness.
Theological Significance
The caul of the liver, as part of the prescribed sacrifice, represents the principle that God deserves the best and innermost parts of what we offer. These were not visible, external portions but hidden, internal ones, pointing to the truth that God looks at the heart, not outward appearances. The caul of the heart in Hosea warns against spiritual hardness and self-enclosure against God. Together, these usages teach that genuine relationship with God requires openness and complete surrender of one's inner life.
Historical Background
The practice of examining and offering animal livers was common throughout the ancient Near East. In Mesopotamia, divination through liver examination (hepatoscopy) was a widespread practice, with elaborate clay liver models used to train priests. Israel's sacrificial system stands in contrast: the liver and its caul were not used for divination but were offered to God as the choicest internal portions. Archaeological finds of clay liver models at sites across the ancient Near East confirm the cultural significance of this organ in the broader region.