Is the gospel “about” Jesus or proclaimed “by” Jesus? (Mark 1:1)
There is a distinction between two uses of the genitive case that is especially important. When Mark introduces his gospel by writing “gospel of Jesus Christ” (εὐαγγελίου Ἰησοῦ Χριστοῦ), does he mean that Jesus proclaims the gospel or that Jesus is the content of the gospel?