The Man With A Measuring Line

Let us begin today to muse from one of the 10 visions of Zechariah. For the next several days let us look at the vision of the man with the measuring line. I will look today in verses 1-5 at the measuring size. The man is met by an Angel while measuring the size of the city. The angel says the size of the city will be small but one day the city will be without walls and the Lord will dwell in the midst of her in all of His glory. It will be then a city in which no man can get a measurement. Correct me if I am wrong, but this sounds to me to be yet future.