What are the words to o come o come Emmanuel?

"O Come, O Come, Emmanuel" is a traditional Advent hymn that expresses longing for the coming of Christ. The lyrics speak of Emmanuel, meaning "God with us," and highlight themes of hope, redemption, and liberation. The hymn is structured in verses that call for deliverance from darkness and the restoration of joy. For the full lyrics, you may need to consult a hymn book or a reliable online resource.