Paul used the word dispensation and linked it to the mystery, its just that people like you refuse to understand it, in Ephesians 3
For this cause I Paul, the prisoner of Jesus Christ for you Gentiles,
2 If ye have heard of the dispensation of the grace of God which is given me to you-ward:
3 How that by revelation he made known unto me the mystery; (as I wrote afore in few words,
4 Whereby, when ye read, ye may understand my knowledge in the mystery of Christ)
5 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;
Paul keep distinguishing between Jews and Gentiles, and he calls himself the Apostle to the Gentiles many times throughout Romans-Philemon.
Its all there, but because churches love to preach from the 4 Gospels, many don't wish to emphasize on those passages.
For this cause I Paul, the prisoner of Jesus Christ for you Gentiles,
2 If ye have heard of the dispensation of the grace of God which is given me to you-ward:
3 How that by revelation he made known unto me the mystery; (as I wrote afore in few words,
4 Whereby, when ye read, ye may understand my knowledge in the mystery of Christ)
5 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;
Paul keep distinguishing between Jews and Gentiles, and he calls himself the Apostle to the Gentiles many times throughout Romans-Philemon.
Its all there, but because churches love to preach from the 4 Gospels, many don't wish to emphasize on those passages.
Did you learn dispensationalism through independent Bible study? Or did others tell you of it?
You are simply repeating the talking points of Dispensationalists.