Kingdom of Heaven

Matthew 4:17
World English Bible (WEB)

¹⁷ From that time, Jesus began to preach, and to say, “Repent! For the Kingdom of Heaven is at hand.”

• Matthew is the book primarily written for Jews
• “the Kingdom of Heaven” Only mentioned in Matthew
• Repentance in its context means : believe Him as your Messiah

Jesus sat down

• In the sermon on the Mount, Jesus sat down
• Implies the sermon of a King
• After sermon on the Mount, Jesus came down and cleansed the Leper
• Picture of King raising Jairus daughter from Dead, opening eyes of the blind, cleansing Leper,…

Repentance towards God 

• Repentance not towards man

Acts 20:21
World English Bible (WEB)

²¹ testifying both to Jews and to Greeks repentance toward God, and faith toward our Lord Jesus.

Kingdom of God 

• Kingdom of God is not Kingdom of Heaven
• Read more about Kingdom of God in here