Two Puzzling Baptisms

Know about the book -

Two Puzzling Baptisms is written by Roger David Aus and published by Bloomsbury Publishing USA. It's available with International Standard Book Number or ISBN identification 0761884874 (ISBN 10) and 9780761884873 (ISBN 13).

How could the Apostle Paul maintain in his first letter to the Christians in Corinth that all their ancestors were baptized into Moses at the Red Sea / exodus event (10:2), and how could he tolerate some of them having themselves baptized again on behalf of the dead (15:29)? Answers to these puzzling questions can be found in early Jewish sources now located both in Greek and Hebrew, all here translated.