Ephesians 3:4 in the King James Version
Whereby, when ye read, ye may understand my knowledge in the mystery of Christ)
Context
3 how that by revelation the mystery was made known to me, as I wrote before in few words,
4 by which, when you read, you can perceive my understanding in the mystery of Christ,
5 which in other generations was not made known to the children of men, as it has now been revealed to his holy apostles and prophets in the Spirit,