A.T. Robertson Commentary Matthew 16:8

"And Jesus perceiving it said, O ye of little faith, why reason ye among yourselves, because ye have no bread?" — Matthew 16:8 (ASV)

Jesus asks four pungent questions about the intellectual dulness, refers to the feeding of the five thousand and uses the word κοφινους (14:20) for it and σφυριδας for the four thousand (15:37), and repeats his warning (16:11). Every teacher understands this strain upon the patience of this Teacher of teachers.