The Fountain Of Cleansing
The return of The Messiah will mark the beginning of the end of religious error and confusion. How? By putting an end to those who propagate error by putting an end to the spiritual blindness and deafness that is the root of all that is not true (see A Brainwashed World).
"30:20 And though the Lord give you the bread of adversity, and the water of affliction, yet shall not thy teachers be removed into a corner any more, but thine eyes shall see thy teachers: 30:21 And thine ears shall hear a word behind thee, saying, This is the way, walk ye in it, when ye turn to the right hand, and when ye turn to the left" (Isaiah 30:20-21 KJV).
"In that day there shall be a fountain opened to the house of David and to the inhabitants of Jerusalem for sin and for uncleanness"
Jerusalem will be the capital of the earth. The cleansing will necessarily begin there (because, to the LORD, Jerusalem is still Sodom and Egypt), and then flow from there. Thereafter, "4:1 But in the last days it shall come to pass, that the mountain of the house of the LORD shall be established in the top of the mountains, and it shall be exalted above the hills; and people shall flow unto it. 4:2 And many nations shall come, and say, Come, and let us go up to the mountain of the LORD, and to the house of the God of Jacob; and he will teach us of his ways, and we will walk in his paths: for the law shall go forth of Zion, and the word of the LORD from Jerusalem. 4:3 And he shall judge among many people, and rebuke strong nations afar off; and they shall beat their swords into plowshares, and their spears into pruninghooks: nation shall not lift up a sword against nation, neither shall they learn war any more" (Micah 4:1-3 KJV).
"13:1 In that day there shall be a fountain opened to the house of David and to the inhabitants of Jerusalem for sin and for uncleanness.
When Christ was crucified, His "sheep" were scattered - but through His Word, they never then, or now, stopped knowing The Shepherd's Voice.
13:7 Awake, O sword, against my shepherd, and against the man that is my fellow, saith the LORD of hosts: smite the shepherd, and the sheep shall be scattered: and I will turn mine hand upon the little ones. 13:8 And it shall come to pass, that in all the land, saith the LORD, two parts therein shall be cut off and die; but the third shall be left therein. 13:9 And I will bring the third part through the fire, and will refine them as silver is refined, and will try them as gold is tried: they shall call on my name, and I will hear them: I will say, It is my people: and they shall say, The LORD is my God." (Zechariah 13:7-9 KJV)
Fact Finder: As we read, the earth will be rid of all evil by the spiritual cleansing provided by the fountain of the Holy Spirit. How was the earth once physically purified by a fountain of water? How was that flood a prophecy of a greater "flood" yet to come?