Repentance

From that time on Jesus began to preach, "Repent, for the kingdom of heaven has come near." Matt 4:17

Jesus' version of repentance was not simply about living right again or feeling sincerely sorry. Because obviously, even the Jews with high regard of the law could not do so, by their own humane strength or discipline; nor did it make them justified before God

Instead, its simply about turning away from the old ways of thinking and becoming part of a new kingdom - a new rule who's values are not based upon  justification by works but rather justification and sanctification by faith. That now, we (not just those who are Holy) can turn to God to receive Forgiveness and Grace to change and heal our lives.

Do not conform to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God's will is—his good, pleasing and perfect will. Romans 12:2