דברי הימים א כו:א פירוש: רש״י

Of the divisions of the gate sentries: of the Korahites They do not rotate, but they distributed them according to the gates, and they later cast lots [to determine] who would serve at this gate and who at another gate. In this way it is explained further (verses 13-19).

of the Korahites: Meshelemiah the son of Kore of the sons of Asaph And [we find] a similarity above (9:19): “And Shallum the son of Kore, etc.”