You have heard... But I tell to you...

Matthew 5:21-26
Angry with his brother and says to is brother, 'Raca','you fool' will be subject to judgment as anyone who murders.
Motivation is sin same as murder.
Reconcile to your brother before you are offering your gift at the altar. Settle matters quickly with your adversary who is taking you to court.
Jesus introduces six examples with the works: 'You have heard... But I say to you...'
He shows how the principles expressed in the law are meant to be applied. In every case - murder, adultery; divorce; oaths; retaliation; loving others - the standard is raised.
Why?
Jesus shows how sin begins in the mind and will. That is where it must be rooted out. Law-courts deal only with wrongdoing: in God's eyes the thoughts and motives behind the action are culpable(有罪) too.
Have peace and reconcile with brothers is more important than offering to the Lord.
Angry and says bad word are doing wrong matters.
How?
Obey the law of God not only behavior but also from the heart and mind.