What does Isaiah 18:7 mean?
Isaiah ends Chapter 18 with a parallel to earlier statements. He previously mentioned how messengers were being sent to a nation of "tall and smooth people" in a nation "whose land the river divides" (Isaiah 18:2). Now, he points forward to a time when tribute—a form of tax or duty paid to one's ruler—will be brought from such a people. They will bring their tribute to God at Jerusalem, on Mount Zion. Isaiah is describing the future kingdom of the Messiah on earth, where He will reign from Jerusalem over the entire world.Isaiah 2:1–4 describes how the Gentile nations will flow to Zion to meet the Lord and learn His ways. That's the end times moment to which Isaiah looks once again.
In Scripture, the "name" of the Lord implies more than a simple label. The idea of the "name" implies that person's power, authority, and control. God's name carries weight, power, and holiness. It needs a place, and Mount Zion is the place where His "name" resides.