Ezekiel 40:1-2 "In the twenty-fifth year of our exile, at the beginning of the year, on the tenth of the month, in the fourteenth year after the city was taken, on that same day the hand of the Lord was upon me and He brought me there. 2 In the visions of God He brought me into the land of Israel and set me on a very high mountain, and on it to the south there was a structure like a city."
Revelation 20:4 gives us this clear definition - "Then I saw thrones, and they sat on them, and judgment was given to them. And I saw the souls of those who had been beheaded because of their testimony of Jesus and because of the word of God, and those who had not worshiped the beast or his image, and had not received the mark on their forehead and on their hand; and they came to life and reigned with Christ for a thousand years." 2
1. The reason this period of time is called "millennium" is because of its duration, 1,000 years, and the Latin word "millennium" has been used since the early days of the church and is translated "milli" (thousand) and "annum" (years).
2. Other scriptures, such as 1 Corinthians 15:24-28; Isaiah 11 and Zechariah 12-14 gives us clues as to the physical aspects of Christ's coming Kingdom that will begin after the end of this current age in which we live.