the door: Ezekiel 41:2, Ezekiel 41:23-26
waters issued: Solomon's temple and the second temple were doubtless well supplied with water, probably conveyed there by means of pipes; but these waters flowed from the temple, not as a common sewer, but as a fertilizing river. A fountain producing abundance of water was not in the temple, and could not be there on the top of such a hill; and consequently these waters, as well as those spoken of by Joel and Zechariah, must be understood figuratively and typically. These waters doubtless were an emblem of the "gospel preached with the Holy Ghost sent down from heaven;" and their gradual rise beautifully represents it progress, from small beginnings to an immensely large increase; and the latter part of the representation may relate to the times when it shall fill the earth, and produce the most extensive and important effects on the state of making in every nation. Psalms 46:4; Isaiah 30:25, Isaiah 55:1; Jeremiah 2:13; Joel 3:18; Zechariah 13:1, Zechariah 14:8; John 7:37-39; Revelation 22:1, Revelation 22:17
from under the threshold: Ezekiel 47:12; Isaiah 2:3