21 He said, “I have observed all these things from my youth up.”
Luke 18:21 Cross References - WEB
Matthew 19:20-21
Mark 10:20-21
Luke 15:7
7 I tell you that even so there will be more joy in heaven over one sinner who repents, than over ninety-nine righteous people who need no repentance.
Luke 15:29
29 But he answered his father, ‘Behold, these many years I have served you, and I never disobeyed a commandment of yours, but you never gave me a goat, that I might celebrate with my friends.
Luke 18:11-12
Romans 10:2-3
Philippians 3:6
6 concerning zeal, persecuting the assembly; concerning the righteousness which is in the law, found blameless.