The case of position or location.
Locative of Place
The Locative is used to express spatial limitations. It locates within a spot or an area. It occurs either with or without prepositions.
The Locative of Time
The Locative expresses time as a point of time, not as duration (the accusative case – extent of) or time within which (the genitive case- kind of time). Position is clear in that it indicates the time at which, i.e. at this point of time.
The Locative of Sphere
This use is often listed under the Locative of place. It is the figurative or metaphorical use. It locates within logically rather than within spatial or temporal limits. This use is used with nouns, verbs, and adjectives.
The Locative with Nouns
The Locative may occur with nouns.
The Locative with Verbs
The Locative may occur with verbs.
The Locative with Adjectives
The Locative may also occur with adjectives.
The Pregnant use of the Locative
The Locative is used where we would expect to find είς with the accusative after verbs of motion or rest. In the N.T. it always occurs with a preposition. While the Accusative emphasizes extension, the Locative emphasizes location. This use is common in the N.T. with ἐν. It also occurs with πάρα and έπί with ἐν in composition.