Gentiles are are made Heirs along with the Jewish people--and this word ties directly back to the allotment of land in the Promise. So they share something with the Jewish people, a future, an inheritance. The Gentiles believed it so much in that era that they started to endure persecution alongside with the Jews. Because they believed the future glory would be theirs. The question is, do we believe in that future as much as they did?

https://www.restorationmessiah.com/media/knb7cb8/romans-22-inheritance-sufferinig-glory