Sing To The Lord A New Song

In Psalm 98, the psalmist says, “Sing to the Lord a new song.” It’s a phrase that’s heard there times in the Psalms. And it’s also included in Isaiah.  And chances are good we’re going to sing these words in worship on Christmas. However, is this God’s way of telling us we need some fresh music in the Christian hit parade? Is the psalmist saying we should ditch the familiar old hymns and carols?