Ephesians 3:4

For I do not want you, brothers, to be uninformed of this mystery—so that you will not be wise in your own estimation—that a partial hardening has happened to Israel until the fullness of the Gentiles has come in;

But even if I am unskilled in word, yet I am not so in knowledge; in fact, in every way we have made this evident to you in all things.

that by revelation there was made known to me the mystery, as I wrote before in brief.

and to bring to light for all what is the administration of the mystery which for ages has been hidden in God who created all things;

that is, the mystery which has been hidden from the past ages and generations, but has now been manifested to His saints,

so that their hearts may be encouraged, having been held together in love, even unto all the wealth of the full assurance of understanding, unto the full knowledge of God’s mystery, that is, Christ Himself,

praying at the same time for us as well, that God will open up to us a door for the word, so that we may speak the mystery of Christ, for which I have also been bound,