Some people judge and condemn others with the biblical knowledge, and they say they are simply discerning between right and wrong. In the sight of God, however, it is the act of arrogance and foolishness. God created mankind in the image of God. They are all equal, and no one can ignore others. Jesus, though He is the Son of God, lowered Himself and died on the cross to save us. And He set a good example of service by washing His disciples' feet (John 13:14). True Christians should follow this example of His. No matter how poor and weak the other is or no matter how little knowledge he/she may have, you should regard him/her more important than yourself in humility. For this you should not stop at the level of storing biblical knowledge in your head and it is important for you to cultivate it in your heart.