The Greek word koilía, represented by G2836, is derived from a word meaning "hollow". It primarily refers to a cavity, specifically the abdomen or, by implication, the matrix or womb. It appears 23 times across 22 unique verses in the Bible. Its usage encompasses the literal belly, the womb as the place of origin, and figuratively, the heart or innermost being.
In scripture, G2836 is used in several distinct contexts. As the belly, it refers to the physical organ of digestion, as seen in the statement "Meats for the belly, and the belly for meats" 1 Corinthians 6:13. It is also used metaphorically to represent carnal appetites and worldly desires. For example, some individuals are described as those "whose God is their belly" Philippians 3:19, who serve "not our Lord Jesus Christ, but their own belly" Romans 16:18. As the womb, the term establishes physical origin and lineage, as when Paul speaks of being separated from his "mother's womb" Galatians 1:15. It is central to narratives of birth, such as when an angel names Jesus before he was "conceived in the womb" Luke 2:21 and when the babe leaped in Elisabeth's womb Luke 1:41. Figuratively, it points to the innermost part of a person, as when Jesus promises that "out of his belly shall flow rivers of living water" for the one who believes John 7:38.
Several related words clarify the contexts in which G2836 is used:
- G1033 brōma (food): This word for meat or victuals is directly linked to the belly's function of digestion. It is used in parallel in the phrase "Meats for the belly, and the belly for meats" 1 Corinthians 6:13.
- G1080 gennáō (to procreate): Meaning to be born or conceive, this word is intrinsically connected to the concept of the womb. In a lament, Jesus blesses "the wombs that never bare" Luke 23:29, and Nicodemus questions how a man can enter his mother's womb a second time to be born John 3:4.
- G1025 bréphos (an infant): As a word for a babe or infant, it highlights the role of the womb as the place of gestation. The connection is explicit when "the babe leaped in her womb" at Mary's salutation Luke 1:41.
The theological weight of G2836 is seen in its application to both human weakness and divine purpose.
- Seat of Carnal Desire: The "belly" is often used to symbolize a focus on earthly and fleshly appetites that stand in opposition to spiritual service. Those who "serve...their own belly" use "good words and fair speeches" to "deceive the hearts of the simple" Romans 16:18. This presents a warning against prioritizing physical gratification over devotion to God, where the belly becomes a false god Philippians 3:19.
- Vessel of Divine Foreknowledge: The "womb" is portrayed as the starting point of God's sovereign plan for an individual's life. God separated Paul "from his mother's womb" for his apostolic calling Galatians 1:15. Likewise, John the Baptist was to be "filled with the Holy Ghost, even from his mother's womb" Luke 1:15, signifying a life consecrated to God from its very beginning.
- Source of Spiritual Life: Figuratively, the "belly" represents the innermost being from which spiritual life flows. Jesus declares that for a believer, "out of his belly shall flow rivers of living water" John 7:38, indicating a deep, internal source of spiritual vitality provided by the Holy Spirit.
In summary, G2836 is a versatile word that bridges the physical and the spiritual. It denotes the literal belly, tied to both necessary sustenance and corruptible carnal desires, and the womb, representing physical birth, lineage, and the beginnings of divine purpose. Figuratively, koilía is elevated to represent the very heart of a person, the inner core from which either destructive appetites or rivers of divine life can flow.