The ketiv הַרְבֵּה appears to have been an infinitive absolute (or possibly imperative) that has fossilized and functions as an adverb.[1] The qere הֶרֶב is an imperative that functions as hendiadys with the following verb.
- ↑ HALOT; GKC §113k; Waltke-O'Connor §35.4a; Jouon-Muraoka §102e.