Matthew 7:6
"Give not that which is holy to the dogs; neither cast your pearls before the swine, lest haply they trample them down with their feet; and, turning, rend you.
Matthew 15:14
Let them alone; they are blind guides; and if a blind man be guiding a blind man, both will fall into a pit."
Galatians 2:11-14
But, when Cephas came to Antioch, I withstood him to the face, because he was blameworthy;
Hebrews 6:4-8
For as to those who were once enlightened, and tasted of the heavenly gift, and became partakers of the Holy Spirit,
2 Peter 3:15-16
And account the long-suffering of our Lord salvation; as our beloved brother Paul also, according to the wisdom given him, wrote to you;