He asked when did Jesus teach, not Joseph Smith claim the Lord taught. He is asking for quotes from the NT, not the claims of the LDS documents.
But your god is not the same one as the only true God which is taught in the NT and the orthodox Christian faith, therefore, you are not working the righteousness required for eternal life.
The action in this verse is a one-time event already past. Therefore Peter was not teaching anyone to do anything for the dead.
Peter was talking about scripture canon from Gen-Rev, not about LDS documents. Again, LDS docs (including D&C) are the opinions of JS and LDS leaders, and do not conform to the teachings and promises of Jesus and His apostles. Since many of the teachings of LDS are contrary to the teachings in the NT, the D&C must be completely rejected as a source of truth.
Yet another lie from the LDS, since the gospel was indeed around and being taught at that time. By the statement you make here, you imply that the gospel being taught then, which is the same gospel being taught today in the mainline Christian churches, is not the same gospel taught in the LDS church. Is this what you are saying? You admit that the gospel taught in the LDS church is NOT the same gospel being taught in other Christian churches such as Baptist, Methodist, Presbyterian, Catholic, Anglican, et al?
TD