But Jesus told them, “I must preach the good news of the kingdom of God to the other towns as well, because that is why I was sent.” luke 4:43Here you go, for the 2nd time.
...>"repent for the kingdom of Heaven, is at hand'"""
See that?
That is John The Baptist's "gospel".....and you find it in Acts 2.
You wont find it, in Paul's Gospel.
yes repentance and The Kingdom of Heaven ARE Jesus's core messages;
- Matthew 4:17 - "From that time on, Jesus began to preach, 'Repent, for the kingdom of heaven has come near.'"
- Matthew 9:13 - "But go and learn what this means: 'I desire mercy, not sacrifice.' For I have not come to call the righteous, but sinners to repentance."
- Matthew 11:20-21 - "Then Jesus began to denounce the cities in which most of His miracles were performed, because they did not repent. 'Woe to you, Chorazin! Woe to you, Bethsaida! For if the miracles that were performed in you had been done in Tyre and Sidon, they would have repented long ago in sackcloth and ashes.'"
- Mark 1:14-15 - "After John was arrested, Jesus went to Galilee, proclaiming the good news of God. 'The time has come,' He said. 'The kingdom of God has come near. Repent and believe the good news!'"
- Luke 5:32 - "I have not come to call the righteous, but sinners to repentance."
- Luke 13:3 - "I tell you, no! But unless you repent, you too will all perish."
- Luke 13:5 - "I tell you, no! But unless you repent, you too will all perish."
- Luke 15:7 - "I tell you that in the same way there will be more rejoicing in heaven over one sinner who repents than over ninety-nine righteous persons who do not need to repent."
- Luke 24:46-47 - "He told them, 'This is what is written: The Messiah will suffer and rise from the dead on the third day, and repentance for the forgiveness of sins will be preached in His name to all nations, beginning at Jerusalem.'"
- see also MARK 13-3:13