en_tn/act/10/48.md

he commanded them to be baptized

It is implied that the Jewish Christians were the ones who would baptize them. AT: "Peter commanded the Gentile believers to allow the Jewish Christians to baptize them" or "Peter commanded the Jewish Christians to baptize them" (See: rc://en/ta/man/translate/figs-explicit and rc://en/ta/man/translate/figs-activepassive)

be baptized in the name of Jesus Christ

Here "in the name of Jesus Christ" expresses that the reason for their baptism was that they believed in Jesus. AT: "be baptized as believers in Jesus Christ" (See: rc://en/ta/man/translate/figs-metonymy)