Two Puzzling Baptisms

With the aid of early Jewish sources, this study opens new avenues of interpretation regarding two enigmatic passages on baptism in Paul's first letter to the Corinthians, 10:1-5 and 15:29.

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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.