At the second coming, these covenants will be fulfilled as Israel is re-gathered from the nations (Matthew 24:31), converted (Zechariah 12:10–14), and restored to the land under the rule of the Messiah, Jesus Christ. The Bible speaks of the conditions during the millennium as a perfect environment physically and spiritually. It will be a time of peace (Micah 4:2–4; Isaiah 32:17–18), joy (Isaiah 61:7, 10), and comfort (Isaiah 40:1–2). The Bible also tells us that only believers will enter the millennial kingdom. Because of this, it will be a time of obedience (Jeremiah 31:33), holiness (Isaiah 35:8), truth (Isaiah 65:16), and the knowledge of God (Isaiah 11:9, Habakkuk 2:14). Christ will rule as king (Isaiah 9:3–7; 11:1–10). Nobles and governors will also rule (Isaiah 32:1; Matthew 19:28), and Jerusalem will be the political center of the world (Zechariah 8:3).
Revelation 20:2-7 gives the precise time period of the millennial kingdom. There are countless other passages that point to a literal reign of the Messiah on the earth. The fulfillment of many of God’s covenants and promises rests on a literal, physical, future kingdom. There is no solid basis for denying the literal interpretation of the millennial kingdom and its duration being 1,000 years.