And yet Jesus Himself preached repentance. So again I ask how can one preach the cross and not deal with sin? When we preach the cross to anyone prior to salvation it is necessary to deal with the fact that we are sinners and that must change. Anyone who says I admit I am a sinner, I want God's salvation but have no intention of changing my life is nothing more than the rich young ruler.
The work of the Holy spirt Himself grants us godly repentence and faith in jesus, so all who are saved will have that desire in them , as we have now the new natures/Holy Spirit indwelling us!
We cannot clean up ourselves and come to jesus, as its His bllod that cleanses us from all sins!