God’s promise of the earthly Kingdom of the Messiah is found throughout the Old Testament. You can find references in Second Samuel, Psalm 2, and a large number of references in the books of Isaiah, Jeremiah, Ezekiel, Daniel, Hosea, Joel and Zechariah.

When you read through the New Testament, Matthew 24 focuses on the time when the sign of the Son of man appears in heaven, and Jesus comes with the angels to gather the elect from the four corners of the earth. That heralds the beginning of the glorious Millennial Kingdom.

So both Old and New Testament are just loaded with promises with regard to the Kingdom.

In Revelation 20, we are shown the earthly Kingdom of the Messiah. We are actually looking at a restored earth, almost restored to its original glory. It is ruled by the Lord Jesus Christ and the saints of all the ages. Up until Revelation 20, everything has been pre-millennial. Everything has been pre-Kingdom.