There is a physical washing and a spiritual washing. Physical washing makes a man clean on the outside. Spiritual washing makes a man clean on the inside. One washes away dirt, and the other washes away sin. No matter how many times, a physical washing by a man can only wash away dirt not sin, but a spiritual washing by God can wash away guilt. In Islam the washing is by men for Allah, but in Christianity the washing (baptism) is from God for men. Complete oposites. That is why Islamic washing must be continually repeated, while Christian washing (baptism) needs to be done only once. Islamic washing is of external parts of the body, while Christian washing is of internal parts -mind, soul, and spirit. Next to come. What is Whitewashing?