Jesus Begins His Earthly Ministry
Matthew 4:12-17 NKJV
Now when Jesus heard that John had been put in prison, He departed to Galilee.  And leaving Nazareth, He came and dwelt in Capernaum, which is by the sea, in the regions of Zebulun and Naphtali,  that it might be fulfilled which was spoken by Isaiah the prophet, saying:  “The land of Zebulun and the land of Naphtali, By the way of the sea, beyond the Jordan, Galilee of the Gentiles:  The people who sat in darkness have seen a great light, And upon those who sat in the region and shadow of death Light has dawned.”  From that time Jesus began to preach and to say, “Repent, for the kingdom of heaven is at hand.”
1) Biblical Repentance Involves Godly Sorrow That Leads To Salvation. Worldly Sorrow Leads To Death.
2 Corinthians 7:8-10 NKJV
For even if I made you sorry with my letter, I do not regret it; though I did regret it. For I perceive that the same epistle made you sorry, though only for a while.  Now I rejoice, not that you were made sorry, but that your sorrow led to repentance. For you were made sorry in a godly manner, that you might suffer loss from us in nothing.  For godly sorrow produces repentance leading to salvation, not to be regretted; but the sorrow of the world produces death.
2) Biblical Repentance Involves Separation
John 5:14 NKJV
Afterward Jesus found him in the temple, and said to him, “See, you have been made well. Sin no more, lest a worse thing come upon you.”
John 8:11-12 NKJV
She said, “No one, Lord.” And Jesus said to her, “Neither do I condemn you; go and sin no more.”  Then Jesus spoke to them again, saying, “I am the light of the world. He who follows Me shall not walk in darkness, but have the light of life.”
3) Biblical Repentance Involves Submission
1 Thessalonians 1:5-10 NKJV
For our gospel did not come to you in word only, but also in power, and in the Holy Spirit and in much assurance, as you know what kind of men we were among you for your sake.  And you became followers of us and of the Lord, having received the word in much affliction, with joy of the Holy Spirit,  so that you became examples to all in Macedonia and Achaia who believe.  For from you the word of the Lord has sounded forth, not only in Macedonia and Achaia, but also in every place. Your faith toward God has gone out, so that we do not need to say anything.  For they themselves declare concerning us what manner of entry we had to you, and how you turned to God from idols to serve the living and true God,  and to wait for His Son from heaven, whom He raised from the dead, even Jesus who delivers us from the wrath to come.
Acts 26:19-23 NKJV
“Therefore, King Agrippa, I was not disobedient to the heavenly vision,  but declared first to those in Damascus and in Jerusalem, and throughout all the region of Judea, and then to the Gentiles, that they should repent, turn to God, and do works befitting repentance.  For these reasons the Jews seized me in the temple and tried to kill me.  Therefore, having obtained help from God, to this day I stand, witnessing both to small and great, saying no other things than those which the prophets and Moses said would come-  that the Christ would suffer, that He would be the first to rise from the dead, and would proclaim light to the Jewish people and to the Gentiles.”