Can you show anyplace in the Bible (besides 1 Cor. 15) where baptism of the dead is advocated?
Not in a way that will satisfy you, no. [Update: the discussion of 1 Peter and the Shepherd of Hermas below might help.] First I must point out that the source of the LDS practice of vicarious baptism for the dead is NOT the Bible, but modern revelation, which is the rock upon which the Church was founded (Matt. 16:16-18). The apostles and prophets, whom Paul said were the foundation of the Church (Eph. 2:18-20), were instituted to guide the Church by revelation (Eph. 4:11-14), to prevent it from being “tossed by every wind of doctrine.” What God does, he does through his prophets (Amos 3:7), and so it is in the Restored Church. Details of baptism for the dead and temple work, along with regular baptism, the gift of the Holy Ghost by the laying on of hands, priesthood authority, and all else required in the Church of Jesus Christ, were restored by direct revelation. The real question, therefore, is not whether I can convince anybody that my interpretation of 1 Cor. 15:29 is valid, but
