Ephesians 3:6

6 that the nations be fellow-heirs, and of the same body, and partakers of His promise in the Christ, through the good news,

Ephesians 3:6 Meaning and Commentary

Ephesians 3:6

That the Gentiles should be fellowheirs
With the Jews, of all the blessings of grace, of lasting salvation, and of the eternal, incorruptible, and never fading inheritance in heaven; that they should be heirs of God, and joint heirs with Christ Jesus, and inherit all things: and heirs they are by being Christ's, and on account of their special adoption through him, and their justification by his righteousness; and which appears by their regeneration to a lively hope of the inheritance reserved for them in heaven:

and of the same body:
coalesce in one and the same church state, with the believing Jews, under one and the same head, Christ Jesus, and participate of the same grace from him, being all baptized into one body, and made to drink of the same Spirit, and enjoy the same privileges and immunities.

And partakers of his promise in Christ by the Gospel;
as of God, being their covenant God, which is the great promise of the covenant; or of the Spirit, his gifts and graces, called the promise of the Spirit; or of eternal life and happiness, as the gift of grace through Christ. Now all these promises, and all others, are in Christ, yea and amen, safe and secure; and it is through being in Christ that any come to partake of them; and that by the means of the Gospel, as these Gentiles were to do, and did: the Gospel is a declaration of what God has promised in covenant to his people; this was carried among the Gentiles, and was made effectual to their participation of the things contained in it.

Ephesians 3:6 In-Context

4 in regard to which ye are able, reading [it], to understand my knowledge in the secret of the Christ,
5 which in other generations was not made known to the sons of men, as it was now revealed to His holy apostles and prophets in the Spirit --
6 that the nations be fellow-heirs, and of the same body, and partakers of His promise in the Christ, through the good news,
7 of which I became a ministrant, according to the gift of the grace of God that was given to me, according to the working of His power;
8 to me -- the less than the least of all the saints -- was given this grace, among the nations to proclaim good news -- the untraceable riches of the Christ,
Young's Literal Translation is in the public domain.