Um, can you say that again—in English this time

Although the preposed constituent in a focused clause is commonly referred to as the focus of the clause, this is not entirely accurate. Because preposing is normally performed on entire clause-level constituents, material that belongs to the activated proposition is often preposed along with the focus. This phenomenon is particularly common when the preposed item is a prepositional phrase. In these cases, it is usually the noun phrase governed by the preposition that is the focus.— Word Order in the Biblical Hebrew Finite Clause, page 122