I too do not claim to be a bible scholar ( not sure what that even means either )
I will answer what I believe about repentance to God in our Lord Jesus words regarding repenting of our own ways of thinking towards things ( remember that these people Jesus was speaking too were all "law-keepers". )
Jesus is telling all law of Moses observers to "repent" - change your mind about things and believe the gospel. Acknowledge you have sin - which the religious strict law of Moses keepers the Pharisees and scribes thought they didn't have.
Mark 1:14-15 (NASB)
[SUP]14 [/SUP] Now after John had been taken into custody, Jesus came into Galilee, preaching the gospel of God,
[SUP]15 [/SUP] and saying, "The time is fulfilled, and the kingdom of God is at hand; repent and believe in the gospel."
None of us would be able to attain the righteousness of God and we all have all sinned - even all the "good" Jews that supposedly kept the law back in Jesus' time.
This is why I believe Jesus said that all of us would perish in some form or other just like those that had the tower fall on them - not because we did supposedly keep the law of Moses for all of us have sinned and we need the righteousness of God to be able to be with the Lord and not perish - which Jesus provided for us. Thank you Jesus!.
Romans 3:21-28 (NASB)
[SUP]21 [/SUP] But now apart from the Law the righteousness of God has been manifested, being witnessed by the Law and the Prophets,
[SUP]22 [/SUP] even the righteousness of God through faith in Jesus Christ for all those who believe; for there is no distinction;
[SUP]23 [/SUP] for all have sinned and fall short of the glory of God,
[SUP]24 [/SUP] being justified as a gift by His grace through the redemption which is in Christ Jesus;
[SUP]25 [/SUP] whom God displayed publicly as a propitiation in His blood through faith. This was to demonstrate His righteousness, because in the forbearance of God He passed over the sins previously committed;
[SUP]26 [/SUP] for the demonstration, I say, of His righteousness at the present time, so that He would be just and the justifier of the one who has faith in Jesus.
[SUP]27 [/SUP] Where then is boasting? It is excluded. By what kind of law? Of works? No, but by a law of faith.
[SUP]28 [/SUP] For we maintain that a man is justified by faith apart from works of the Law.