Ezekiel 7:27

“I will do to them after their way, and according to their deserts will I judge them. And they will know that I am Yahweh.”

Here was the final reason for what was to come upon them. They have deserved it because of the path that they have chosen, they have been judged because of their behaviour. They had in effect turned their backs on Him and His covenant, seeking other protectors and following in their evil ways. But now they must recognise Who it is that they have spurned. That they have spurned the living ‘God Who is there', Yahweh. And His final purpose was that they may once again know Him and serve Him.