1 Chronicles 26:19
These are the divisions of the porters among the sons of Kore, and among the sons of Merari. (1 Chronicles 26:19)
Divisions.
 The number of gatekeepers was 24 in all: 6 on the east side, 4 on the north, 8 on the south, and 6 on the west. The total number of warders on duty at any one time was doubtless much larger than this, since there were 4,000 “porters,” or doorkeepers, in all (ch. 23:5). The 24 here mentioned were evidently head warders under whom the 4,000 served.