This can be stated in active form. AT: "Philip had only baptized the Samaritan believers" (See: [[rc://en/ta/man/translate/figs-activepassive]])
# they had only been baptized into the name of the Lord Jesus
Here "name" represents authority, and being baptized into his name represents being baptized in order to be under his authority. AT: "they had only been baptized to become disciples of the Lord Jesus" (See: [[rc://en/ta/man/translate/figs-metonymy]])
This symbolic action shows that Peter and John wanted God to give the Holy Spirit to the believers. (See: [[rc://en/ta/man/translate/translate-symaction]])