This can be stated in active form. Alternate translation: "I also remember your" or "I also recall your" (See: [[rc://en/ta/man/translate/figs-activepassive]])
Paul is speaking of their faith as if it were something that is alive and lives in them. Paul means they have the same sort of faith. This can be stated as a new sentence. Alternate translation: "faith. Lois, your grandmother, and Eunice, your mother, first had genuine faith, and I am confident that you have genuine faith as well" (See: [[rc://en/ta/man/translate/figs-metaphor]])