Matthew 4:17 AMPC
From that time Jesus began to preach, crying out, Repent (change your mind for the better, heartily amend your ways, with abhorrence of your past sins), for the kingdom of heaven is at hand.

Crying out! Such was Jesus’ passion for the kingdom, and the first condition for the kingdom was repentance: seeing your sins from God’s view.

To see what sin costs me is not yet repentance. To see how sin costs others is noble perhaps, but not yet repentance.

When – by a divine invasion – you see your sin as God sees it, you change your choices and thinking, which changes your direction and your ways of living. You move. You change. You bear fruit. And then you are ready to see the kingdom of heaven.