C. F. Keil and Franz Delitzsch on 1 Chronicles 26:15

1Ch 26:15

To Obed-edom (fell the lot) towards the south, and to his sons it fell (to guard) the house Asuppim. As to בּית־האספּים, called for brevity עספּים in 1Ch 26:17, i.e., house of collections or provisions (cf. Neh 12:25), we can say nothing further than that it was a building used for the storing of the temple goods, situated in the neighbourhood of the southern door of the temple in the external court, and that it probably had two entrances, since in 1Ch 26:19 it is stated that two guard-stations were assigned to it.