“Indeed, for women and other oppressed people, Jesus turned upside down the accepted wisdom of the day. Pharisees believed that touching an unclean person polluted the one who touched. But when Jesus touched a person with leprosy, Jesus did not become soiled-the leprous became clean. When an immoral woman washed Jesus’ feet, she went away forgiven and transformed. When he defied custom to enter a pagan’s house, the pagan’s servant was healed. In word and in deed Jesus was proclaiming a radically new gospel of grace: to get clean a person did not have to journey to Jerusalem, offer sacrifices, and undergo purification rituals. All a person had to do was follow Jesus. As Walter Wink puts it, “the contagion of holiness overcomes the contagion of uncleanness.”
-Phillip Yancey "The Jesus I Never Knew"