Rev.14:2 – And I heard a voice from heaven like the roar of many waters and like the sound of loud thunder. The voice I heard was like the sound of harpists playing on their harps,
Life carries within itself a rhythm or a melody. Each city has a feel or rhythm about it, it is no different with the city of the Lord. Take New Orleans for example, you can spot a local a mile off. I have lived in New Orleans for about fifty of my sixty seven years. I have pretty much become a part of the city but there is still a distinct difference when you meet someone who has been in a New Orleans family that has been here for generations. New Orleans is literally in their blood. This new song that John is speaking of can only be sung by citizens of the heavenly city. Being born again is how you become part of the population of the New Jerusalem. When that happens the life that enters you brings you into the rhythm and harmony with the heavenly company, then and then only can you begin to sing the new song. Here is how Jonathan Edwards describes this mystery.
“There must be an ability to sing. Not only the matter of the song must be learnt, but also the music of the song. But the music of this tune consists in the melody of the heart…..As in order to learn the music of other songs, the voice must be tuned, so in order to learn the music of this song, the heart must be tuned. The music of this new song consists in holy admiration, in exalting thoughts of the glory of God and the Lamb and the great things of the gospel; and in divine love, in loving God for his excellency appearing in the face of Christ, in holy rejoicing in God and in delight and complacence of the soul in Jesus, whereby we, having not seen him, do love him and “rejoice with joy unspeakable and full of glory”. They that are unacquainted with this spiritual melody, they can’t learn to sing that new song.”
So has your heart been tuned to the heavenly song. You must have the substance of the song, the gospel of Jesus Christ in your heart. You also need the melody of the song which is the work of the Spirit. It’s impossible to fake it, the locals will see phonies a mile away.