Ezekiel 40:15

“And from the face of the gate of the entrance, &c.] That is, from the outward gate as you went into the porch, and was to the east, so called from people’s passing and repassingf694 in it; so Jarchi takes it to be the eastern gate; the Targum calls it the middle gate: unto the face of the porch of the inner gate; which opened at the other end of the porch, into the outward court, and was to the west: from gate to gate were fifty cubits; as he measured the breadth of the porch before, (<264013>Ezekiel 40:13), here the length; there were three chambers six cubits long, which made eighteen; and between each chamber were five cubits, which were ten cubits; and the space between the chambers and…”

“The east gate-building. See Plan III. Ezekiel 40:6 Stairs - Seven in number Ezekiel 40:22. Each threshold of the gate (was) one reed broad (or 9 ft.). The measurements are being taken from East to west, i. e., in depth. Ezekiel 40:7 Every little chamber - The guard-chambers (a) for the use of the Levites who kept watch in the temple. The threshold of the gate by the porch - The second threshold in the easternmost gate-way (c). Porch - Hebrew אולם 'ûlâm; the Septuagint: αἰλάμ ailam; Vulgate: vestibulum. The word probably means porch or portico, connected with “ail” post or pillar. Ezekiel 40:9 The porch is now measured from north to south in “wide.” “The breadth of the entry of the gate”…”

“And - This verse seems to sum up all the dimensions; this gate, its porch, and thickness of its walls, and so sum the cubits, six in the thickness of the outer wall, eighteen in the three chambers, twenty in the spaces between the chambers, and six cubits in the thickness in the inner wall of the porch. Ezekiel 40:16”

“the face of the gate: This was the whole length of the porch, from the outward front ( Eze 41:21, Eze 41:25), to the inner side which looks into the first court ( Eze 40:17), including the thickness of the walls ( Eze 40:6), chambers ( Eze 40:7), and spaces between them. Eze 40:15 Ezekiel 40:16”