JMNT(i)
6 (or, reading the phrase "in spirit" with the next phrase rather than the previous one: in spirit) the nations (the Gentiles; the ethnic multitudes; non-Jews) are to continuously be joint-heirs (fellow-participants by allotment) and a Joint Body (a body together) and joint sharers (partakers) of The Promise [along with the rest], resident within (or: of the assurance in union with) Christ Jesus through the good news (or: [spreading] throughout the midst by means of the message of goodness, ease and well-being)