Ephesians 3:2-5

if ye have heard of the dispensation of the grace of God which is given me to you-ward: how that by revelation he made known unto me the mystery; (as I wrote afore in few words, whereby, when ye read, ye may understand my knowledge in the mystery of Christ) which in other ages was not made known unto the sons of men, as it is now revealed unto his holy apostles and prophets by the Spirit