The lesson on March 29, 2015 was part 23 of the "First Corinthians" study. Chapter ten opens up with Paul addressing the Jewish members of the Corinthian church using their history to emphasize his appeal for their understanding. We learn more about the kind of baptisms in scripture, particularly in the context of comparing our one baptism described in the post Acts books to that of the baptisms in the Old and New Testament, especially during the Acts period (and First Corinthians is an Acts Period Epistle). The economy of the Acts period was coming to a head in that the time was short and the culmination of the "age times" had the chance to be realized. After the book of Acts, PAul reveals the "one baptism" which was part of a calling hidden before age times. The scripture reading was in 1 Corinthians 10:1-5 KJV
"1 Moreover, brethren, I would not that ye should be ignorant, how that all our fathers were under the cloud, and all passed through the sea; 2 And were all baptized unto Moses in the cloud and in the sea; 3 And did all eat the same spiritual meat; 4 And did all drink the same spiritual drink: for they drank of that spiritual Rock that followed them: and that Rock was Christ. 5 But with many of them God was not well pleased: for they were overthrown in the wilderness."