The Older Brother and the Tax Collector

In luke 18 to men went up into the temple to pray, one a pharisee, the other a tax collector. The problem with the older brother more deeply was that he related to his father like a slave instead of a son. He reminded his father, how hard i've served you all these years. You coun et hear like slave. So rachel does not want to be like this older brother. And it says there will be more joy in heaven over one sinner who repents then over 99 righteous persons who need no repentance.