Charles Ellicott Commentary 1 Chronicles 9:21

"Zechariah the son of Meshelemiah was porter of the door of the tent of meeting." — 1 Chronicles 9:21 (ASV)

And.—Omit. The verse returns abruptly from the Mosaic to the Davidic age.

Zechariah the son of Meshelemiah had charge of the north gate under David (1 Chronicles 26:12).

Was porter of the door of the tabernacle of the congregation.—Was a doorkeeper of the tent of meeting. The verse seems to refer the functions of Zechariah to Mosaic antiquity; but compare Note on 1 Chronicles 9:19. The relation of this company to those mentioned in 1 Chronicles 9:17 is indeterminate.