John 7:24

What was wrong with the way the Pharisees judged Jesus for healing the man on the Sabbath, in John 7:21?
What are some dangers that come about when we judge a person or a situation by outward appearances?
Why is it wrong to judge a person’s motives? Is it possible to know a persons motives? How can we know another person’s motives?
In a court of law, how is a person’s guilt established? Does this have anything to say about how we judge others?
What is the biblical way to deal with fear of man?