Matthew 15:16
"Are you still so dull?" Jesus asked them.
And St. Paul chimes in...
Galatians 5:12
As for those agitators, I wish they would go the whole way and emasculate themselves!
Out of curiousity (and I do NOT want to start a Bible war here since I'm WAY out of my league), what version of the Bible are you using? That quote seems extremely different from mine (King James Version):
And Jesus said, "Are ye also yet without understanding?"
Of course it is within the context of a larger story, but what strikes me is how the translation has gone from asking if they yet understand to asking if they are "dull". Seems to me that accusing someone of being "dull" is akin to calling them 'mentally slow' or stupid. I don't think that was the intent of his statement.
Anyway, just curious.