en_tn/act/09/42.md

This matter became known throughout all Joppa

This refers to the miracle of Peter's raising Tabitha from the dead. It can be stated in active form. Alternate translation: "People throughout all Joppa heard about this matter" (See: rc://en/ta/man/translate/figs-activepassive)

believed on the Lord

"believed in the gospel of the Lord Jesus"