In the old days Israel pleaded its case through the mountains to God, and God made his accusations through the mountains to the people. These mountains were the mediators between God and His people. However, in the last days, Christ will be recognized as the chief of all mountains! The old mountains have only existed since creation, but This Mountain is the One whose origins are of old, from the days of eternity! For He is our direct and Divine Mediator, the Word, and the Law!
Christ (the Cornerstone) becomes the new Temple/Mediator when He is "Cut Off" by God from top of Mount Zion (Jerusalem) to shatter the statue (kingdoms of men) and become the Mountain that fills the whole Earth, an everlasting Kingdom for which no statue will ever compare!
When you confess with your mouth and believe in your heart the promise of this Mountain, He will tread your sins underfoot and God will cast your sins into the sea, for this Mountain took your sins upon it when it was "Cut Off" by God. No one stands between our voice and this Mountain. We speak directly to Him regarding the forgiveness of our sins.
Supporting Verses:
Paragraph 1:
"Hear now what the LORD says: "Arise, plead your case before the mountains, and let the hills hear your voice. Hear, O mountains, the LORD's indictment, you enduring foundations of the earth. For the LORD has a case against His people, and He will argue it against Israel:" (Micah 6:1-2)
"In the last days the mountain of the house of the LORD will be established as the chief of the mountains; it will be raised above the hills, and the peoples will stream to it. And many nations will come and say: "Come, let us go up to the mountain of the LORD, to the house of the God of Jacob. He will teach us His ways, so that we may walk in His paths." For the law will go forth from Zion and the word of the LORD from Jerusalem." (Micah 4:1-2)
But you, Bethlehem Ephrathah, who are small among the clans of Judah, out of you will come forth for Me One to be ruler over Israel One whose origins are of old, from the days of eternity. (Micah 5:2)
Paragraph 2:
"Then after the sixty-two weeks the Messiah will be cut off and will have nothing." (Daniel 9:26)
"As you watched, a stone was cut out, but not by human hands. It struck the statue on its feet of iron and clay, and crushed them. Then the iron, clay, bronze, silver, and gold were shattered and became like chaff on the threshing floor in summer. The wind carried them away, and not a trace of them could be found. But the stone that had struck the statue became a great mountain and filled the whole earth." (Danial 2:34-35)
"It will shatter all these kingdoms and bring them to an end, but will itself stand forever." (Daniel 2:44)
Paragraph 3:
He (Christ) will again have compassion on us; he will tread our iniquities underfoot. You (God) will cast all our sins into the depths of the sea. (Micah 7:19)
Truly I say to you that whoever shall say to this mountain, 'Be you taken away and be you cast into the sea,' and shall not doubt in his heart, but shall believe that what he says takes place, it will be done for him. (Mark 11:23)