This is a rhetorical statement for "no one should keep water from these people". (see [[rc://en/ta/man/translate/figs-rquestion]])
## they should not be baptized ##
Peter is making a negative statement, called litotes, with the rhetorical question to emphasize that these people deserve to be baptized. (See: [[rc://en/ta/man/translate/figs-litotes]])
## he commanded them to be baptized ##
"Peter commanded the Gentiles to be baptized" (passive) or "Peter commanded the Jewish Christians to baptize the Gentile believers" (see: [[rc://en/ta/man/translate/figs-activepassive]])