And they reasoned among themselves, saying, It is because we have no bread.
And they reasoned among themselves,.... Upon Christ's giving this caution, and recollecting with themselves, that they had forgot to buy any provisions, and take with them:
saying, It is because we have no bread; that he says these words; tacitly chiding and reproving us, for our want of thought and care;
See Gill on "Matthew 16:7".