כֶּסֶא

כֶּסֶא

properly, fulness or the full moon, i.e. its festival

Definition

The Hebrew word כֶּסֶא (keçeʼ) refers to the 'full moon' or the time of the full moon. In its two biblical occurrences, it specifically denotes the appointed time of a festival, likely the pilgrimage feast that coincides with the full moon. In Psalm 81:3, it is associated with the blowing of the trumpet at the new moon and the 'full moon' for a feast day. In Proverbs 7:20, it is used metaphorically for an appointed time of return, drawing on the cultural understanding of the full moon as a fixed, known date.

Biblical Usage

This word is used only twice in the Old Testament. In Psalm 81:3, it is used in a liturgical context, directly tied to the observance of a sacred festival. In Proverbs 7:20, it is used in a secular, narrative context where a man tells his lover he will return home at the 'appointed time' of the full moon. Both uses leverage the word's core meaning of a specific, known time marked by the lunar cycle.

Etymology

The noun כֶּסֶא (keçeʼ) or its variant כֶּסֶה is derived from the root כָּסָה (kāsâ, H3680), meaning 'to cover.' The connection likely stems from the idea of the moon being 'covered' in its fullness or completeness, hence 'full moon.' This links the concept of a covered or full celestial body to a specific, recurring point in time.

Semantic Range

This word connects the Israelite religious calendar directly to God's creation. The marking of feasts by the moon (Psalm 81:3) reflects a theology where worship is synchronized with natural cycles ordained by God. It underscores that sacred times are not arbitrary but are built into the fabric of the cosmos, inviting God's people to regularly commemorate His acts. Understanding this Hebrew term enriches reading by highlighting the tangible, rhythmic nature of biblical worship. In ancient Near Eastern culture, including Israel, the lunar calendar was fundamental for marking time. Agricultural cycles, religious festivals, and travel were often scheduled around the phases of the moon. The 'full moon' represented a time of maximum light at night, making it a practical and symbolic point for communal gatherings and pilgrimage feasts, as seen in Psalm 81:3. This is quite different from modern, solar-based calendars where the moon's phase is largely irrelevant to scheduling. חֹדֶשׁ (ḥōdeš, H2320) — Refers to the 'new moon' or a 'month,' marking the beginning of the lunar cycle, whereas כֶּסֶא marks its midpoint/fullness. מוֹעֵד (môʿēd, H4150) — A more general term for an 'appointed time' or 'festival,' which can include but is not specific to the full moon.

Word Details