And when they saw some of his disciples eat bread with defiled, that is to say, with unwashed, hands, they found fault.
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Cornelius a Lapide
AD 1637
To eat with common, that Isaiah , with unwashen hands. Hands unwashed were called common, because unclean and profane things were common to both Jews and Gentiles, to clean and unclean persons alike.
Observe, the Apostles were not so boorish as not to wash their hands before dining or supping, which even husbandmen and artisans do before meals; but they abstained from the ceremonial, or rather the superstitious washing of the Pharisees, which they scrupulously observed from the tradition of their ancestors.