Charles Ellicott Commentary Luke 11:38

"And when the Pharisee saw it, he marvelled that he had not first bathed himself before dinner." — Luke 11:38 (ASV)

He marvelled that he had not first washed.—See Notes on Matthew 15:2; Mark 7:3. Here the word “washed” (literally, though of course not in the technical sense, baptized) implies actual immersion, or, at least, a process that took in the whole body. Mark 7:4 shows that this was the Pharisaic standard of ceremonial purity.