The Two Ministries of Christ
Not many people know that Jesus had two ministries. His earthly ministry was under the law, as a Jew, in order to redeem those who were under the law, the Jews.
See Gal 4:4-5.
After Jesus had ascended to heaven, He appeared to Paul and provided him with the mysteries; a new gospel and a new doctrine. This was Jesus heavenly ministry worked out towards the Gentiles through the Apostle Paul.
See Rom 11:13, Eph 3:2-5.