In the book of Isaiah, God’s prophet gladly told of a time to come when he said:
“Now it shall come to pass in the latter days that the mountain of the Lord’s house shall be established on the top of the mountains, and shall be exalted above the hills; and all nations shall flow to it. Many people shall come and say, “Come, and let us go up to the mountain of the Lord, to the house of the God of Jacob; He will teach us His ways, and we shall walk in His paths.” For out of Zion shall go forth the law, and the word of the Lord from Jerusalem. He shall judge between the nations, and rebuke many people; they shall beat their swords into plowshares, and their spears into pruning hooks; nation shall not lift up sword against nation, neither shall they learn war anymore.” (Isaiah 2:2-4)
This was a time that looked forward through Isaiah’s eyes, but today this is a time that looks back through Luke’s. For this reason the apostles were told that they would preach the remission of sins to all nations, but they had to first tarry in Jerusalem until they were endued with power from on high (Luke 24:45-49). In Acts 2 we see the fulfillment of this time when Jews from all around the world were gathered in Jerusalem on Pentecost day, and through the inspiration of the Holy Spirit the apostle Peter preached God’s Law and taught about the resurrected Jesus for the first time to the world. At that time, feet prepared with the gospel of peace went forth to gather the nations into God’s kingdom, into the body of Jesus Christ, the church, by grace through faith. At that time a way of life was being introduced that would bring people, Jew and Gentile, to the Prince of Peace to learn His ways (Isaiah 9:6, Ephesians 2:13-17). That was a wonderful time, and it still is since we now have the opportunity to be joined with God through His Son! And for this reason, Isaiah 2:2-4 is a wonderful Old Testament passage about God’s Kingdom.