You shall know that I am the Lord

Ezekiel 5:1-17
I am the Lord, I have spoken. God's word is never fail.
Behold, I am against you. And I will execute judgments in your midst in the sight of the nations. Because of all your abominations I will do with you what I have never yet done, and the like of which I will never do again.
I will vent my fury upon them and satisfy myself. And you shall know that I am the Lord- that I have spoken in my jealousy-- when I spend my fury upon them.
Why?
God is righteousness, he execute judgments among his people and all human being. The judgment will be started from his people.
The Lord won't do this judgment again, after these punishment the Israelites know that the Lord is their God, they have learned to obey the word of the Lord, so God's fury will never do again.
All of these judgment has one purpose - you shall know that I am the Lord.
How?
If we know he is the Lord, our behavior and altitude will be changed for we fear the Lord. He is the Lord, He is worthy to worship, worthy to honor and worthy to praise.