Sorry for interjecting again, but this requires response: Singing new songs is no more rebellion than praying or preaching with "uninspired" words. God told us to be taught by the Psalms. God teaches in the Psalms and elsewhere that we should sing new songs. We should obey God's Word and sing new songs in the fullness of understanding as it regards the new covenant in Jesus Christ. That does not mean, as some have tried to propose, that we should abandon or change the "old songs", no more than we abandon or change the "old prayers" or "old preaching". We should obey God.