“And it shall come to pass in the last days that the mountain of the Lord’s house shall be established in the top of the mountains, and shall be exalted above the hills, and all nations shall flow unto it.”- Isa 2:2

Standing at the gate of that glorious temple, Isaiah looked into the future and he saw, with tearful eye, the structure burned with fire; he beheld it cast down and the plough driven over its foundations. He saw the people carried away into Babylon, and the nation cast off for a season. Looking once more through the glass he beheld the temple rising from its ashes, with glory outwardly diminished, but really increased. He saw on till he beheld Messiah Himself in the form of a little babe carried into the second temple; he saw Him there, and he rejoiced; but ere he had time for gladness his eye glanced onward to the cross; he saw Messiah nailed to the tree; he beheld His back ploughed and mangled with the whip. “Surely He hath borne our griefs and carried our sorrows,” said the prophet, and he paused awhile to bemoan the bleeding Prince of the House of David. His eye was now doomed to a long and bitter weeping, for he saw the invading hosts of the Romans setting up the standard of desolation in the city. He saw the holy city burned with fire and utterly destroyed. His spirit was almost melted in him. But once more he flew through time with eagle wing, and scanned futurity with eagle eye; he soared aloft in imagination, and began to sing of the last days-the end of dispensations and of time. He saw Messiah ones again on earth. He saw that little hill of Zion rising to the clouds-reaching to heaven itself. He beheld the New Jerusalem descending from above, God dwelling among men, and all the nations flowing to the tabernacle of the Most High God, where they paid Him holy worship.

Is it not a great subject for praise that the nations of the earth may flow to the hill of God and to His house? Ye are come to a mountain which is not forbidden to you. there are no bounds set about it to keep you off, but you are freely bidden and freely invited to come to it. And the God who invited you will give you grace to come. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0249.cfm