A Christmas Bible verse that sums up the spirit of Christmas is John 3:16, which reads, "For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life." This verse reminds us of the deep love that God has for all of us, and the gift of his Son, Jesus Christ, who came to earth to bring us salvation and hope. It's a powerful reminder of the true meaning of Christmas and the importance of faith and belief in Jesus Christ.