Jesus Christ
Jesus — "Jehovah saves"; Christ — the Anointed One
Now, in the days of the apostles the law of circumcision was had among all the Jews who believed not the gospel of Jesus Christ. Doctrine and Covenants 74:2–4
The dividing line in Paul's day was whether people accepted the gospel of Jesus Christ or held to the old law.
How we know: the verse itself names Him · the chapter heading names Him
