What does the Bible say about the importance of baptism?

Baptism serves as a public declaration of one's faith in Jesus and is an important step for believers. In Mark 16:15-16, Jesus commands His disciples to preach the gospel to all creation, stating that 'he that believeth and is baptized shall be saved.' This indicates that baptism is closely linked to faith in the gospel and signifies a transformation in the believer's life. It serves as a picture of being buried with Christ and rising to walk in newness of life, illustrating the believer's union with Him in His death and resurrection.