Matthew 1:5 And Salmon begat Booz of Rachab; and Booz begat Obed of Ruth; and Obed begat Jesse;
All the way back in the book of Ruth we learn about Ruth a Moabitess choosing to follow the God of her mother in law. She believed. She followed and now she is in the lineage of Jesus Himself.
God saved a non Jewish person from the land of Moab. He not only saved her but allowed her the wonderful grace of being part of the lineage of Christ. Can you believe that?
Yes, the gospel was there. Yes, others could be saved. Yes, others did get saved!