Ephesians 3:2-6

so that you will hear the gospel that God has entrusted to me to share with you. For this wonderful mystery, which I briefly described, was given to me by divine revelation, so that whenever you read it you will be able to understand my revelation and insight into the secret mystery of the Messiah. There has never been a generation that has been given the detailed understanding of this glorious and divine mystery until now. He kept it a secret until this generation. God is revealing it only now to his sacred apostles and prophets by the Holy Spirit. Here’s the secret: The gospel of grace has made you, non-Jewish believers, into coheirs of his promise through your union with him. And you have now become members of his body—one with the Anointed One!