The Pharisee was surprised that Jesus didn't wash his hands before eating as ceremonially required.
When Jesus heard what he said, he was astonished. He told those who were following him, “I tell you the truth, I haven't found this kind of trust anywhere in Israel.
After Jesus had finished speaking, a Pharisee invited him to come and eat with him. So Jesus went and sat down to eat a meal.
An argument developed between John's disciples and a Jew over ceremonial purification.