“This will be the border.” The subject now switches from the river flowing from Jerusalem to the borders of the Promised Land in the Millennial Kingdom. It would have been helpful if the people who originally added chapters to the Bible made this a new chapter, including from Ezekiel 47:13 through chapter 48, which deals with land areas.
[For more on Christ’s future kingdom on earth, see Appendix 3, “Christ’s Future Kingdom on Earth].