NET
6 namely, that through the gospel the Gentiles are fellow heirs, fellow members of the body, and fellow partakers of the promise in Christ Jesus.
Darby
6 that [they who are of] the nations should be joint heirs, and a joint body, and joint partakers of [his] promise in Christ Jesus by the glad tidings;
KJV
6 That the Gentiles should be fellowheirs, and of the same body, and partakers of his promise in Christ by the gospel: