If Jesus was God, he would be all-knowing and all-good, according to traditional Christian understanding of the attributes of Jesus.
In Matthew 15:2, it is noted that Jesus' disciples did not wash there hands before eating. Nowhere in the New Testament do we find Jesus explaining to his followers or others the need to wash hands to avoid disease transmission.
Today we know about the germ theory of disease and the importance of simply washing our hands to avoid disease transmission. If Jesus truly was God with the above attributes, why do we not find Jesus presenting both of these concepts? Could it be that Jesus, if he was historic, was simply a human being with a following?