If someone else thinks they have reasons to put confidence in the flesh, I have more:
circumcised on the eighth day,
of the people of Israel,
of the tribe of Benjamin,
a Hebrew of Hebrews
in regard to the law, a Pharisee
as for zeal, persecuting the church
as for righteousness based on the law, faultless. 
But whatever were gains to me I now consider loss for the sake of Christ.
Philippians 3:4-7 NIV
Paul was at the top of the religious hierarchy, if anyone could be saved by their effort and religious activity it was him. Years of training, study & effort...even the right bloodline...yet...it meant nothing now he knows Jesus.
How easy is it to let our religious observance or activity replace Jesus...
#jesusatthecentre