I'm sorry, but it seems like there might be some confusion. The lyrics you provided are actually from the traditional Christmas carol "Joy to the World," which was written by Isaac Watts, not John Mark McMillan. John Mark McMillan is a contemporary Christian artist known for songs like "How He Loves" and "King of My Heart." Regarding the meaning and story of "Joy to the World," it is a hymn that celebrates the birth and reign of Jesus Christ. The song proclaims that Jesus rules the world with truth and grace and invites everyone to acknowledge and prepare for His coming. It expresses the joy and wonder of His righteousness and love, calling on all of creation, both Heaven and nature, to join in singing His praises. The song communicates the joyous message of Christ's arrival and His reign as the Savior. It encourages people to sing and express their joy through songs of worship, even using the imagery of fields, floods, rocks, hills, and plains to depict the widespread joy and celebration that should resound throughout the Earth. Overall, "Joy to the World" serves as a reminder of the significance of Jesus' birth and His redemptive power, inviting people to celebrate and worship Him.
