Jeremiah 3:17
At that time they shall call Jerusalem the throne of the LORD; and all the nations shall be gathered unto it, to the name of the LORD, to Jerusalem: neither shall they walk any more after the imagination of their evil heart. At that time they shall call Jerusalem the throne of the LORD; and all the nations shall be gathered unto it, to the name of the LORD, to Jerusalem: neither shall they walk any more after the imagination of their evil heart.
At that time Jerusalem is called the throne of the Lord. All the nations are gathered unto it, to the name of the Lord at Jerusalem, to honor Him there. The gathering brings Jew and Gentile together through the transforming power of the gospel. Transformed by that power, they no longer walk after the desires and imagination of their evil hearts.