What is the purpose of baptism?  The preachers of the Reformation preached brilliantly only to find that honest souls could find no relief.  That is until the purpose of baptism was rediscovered.  It was like a missing keystone from an arch.

https://babel.hathitrust.org/cgi/pt?id=hvd.hxde1q&view=1up&seq=7

Autobiography of Elder Samuel Rogers

https://www.christiancourier.com/articles/1143-the-preposition-eis-in-acts-2-38

Study on the word Greek word "eis" from Acts 2:38