Same GOSPEL two different groups of people as in Jews and gentiles.
Jesus NEVER made any distinctions in HIS gospel that the Jews and gentiles would each have a different gospel ever.
John 3:16 For God so loved the WORLD that HE gave His only begotten Son that WHOSOEVER believes will not perish but have everlasting life. Jesus made no distinction between Jews and Gentiles.
When Jesus said in John 14:6 that HE is the way the truth and the life and no man comes to the Father but by Him it applied to everyone, and he made no distinction between Jews and Gentiles.
When Jesus said He was the light of the world He made no distinctions between Jews and Gentiles.
When Jesus said He is the door ( only way to God ) again He made no distinction between Jew and Gentile.
I will stay with what Jesus taught.