The Greek noun aggeion (Ἀγγεῖον) refers to a vessel, container, or flask — typically a small portable container for liquids. It appears in the New Testament in Matthew 13:48 (containers for sorting fish) and Matthew 25:4 (the flasks of oil carried by the wise virgins). The word is distinct from the larger aggos (H30 in Greek) used for bigger containers.
The most theologically resonant use of aggeion is in the Parable of the Ten Virgins (Matthew 25:1-13). The five wise virgins brought extra oil in their aggeion — their flasks — while the five foolish virgins brought none. Jesus uses this parable to teach about preparedness, watchfulness, and the true nature of readiness for the kingdom. The oil is often interpreted as the Holy Spirit, grace, or a living faith that sustains one through the wait. The aggeion — the vessel — represents the interior life, the capacity to hold and sustain what God has given. Outer religious appearance (lamps) is not enough; the vessel must be filled. This connects to Paul's teaching that believers are "jars of clay" (2 Corinthians 4:7) — vessels carrying the treasure of the gospel.