The conversion account of Cornelius (Acts 10) is another wonderful example of someone striving to please God, yet did not know the truth. So God arranged for him to hear the gospel. The pattern in this chapter is consistent with other examples in Acts: Everyone needs the gospel (regardless of race, gender, background, privilege, etc.), the individual hears the gospel from one teaching him (not via divine revelation), and the new convert then believes and obeys the gospel (not rejoicing until baptism has been completed).
Speak where the Bible speaks.