three reasons why

Then he said to me, "The guilt of the house of Israel and Judah is exceedingly great. The land is full of blood, and the city full of injustice. For they say, 'The LORD has forsaken the land, and the LORD does not see.'"
Ezekiel 9:9

God was about to correct the dismissive theology of Israel and Judah. There would be a remnant spared His full judicial wrath. They would be the few people who actually were broken over the idolatry and spiritual apathy that filled the lives of the Jewish people. They would survive, though they still would suffer.

God gives three reasons for His stern judgment. First, the people were violent. Of course the worst way this was known was through human sacrifice in pagan worship. Evil had possessed the hearts of the leaders so that many had even offered their own children in sacrifice to false gods. The bloodshed was widespread. The second reason was a consequence of rejecting the Law of God... injustice marked the description of their society. God cared for the hurting and the poor. The leaders of the nation did not. And God's wrath would correct this.

The final reason for this correction was the underlying rationale... it was a spiritual problem. The people believed God no longer cared or no longer saw them. It was a kind of autonomous thinking. They did not believe in or feel the need for God anymore. They replaced Yahweh with dozens of evil alternatives. But in reality they dismissed God. And judgment would not allow them to continue to do so easily. The Lord would show them He had indeed not forsaken them and He did in truth see and know all their actions.

God cares about what people think about Him and how they act as a result of that belief. He sees worship. He sees when we understand and follow His Word. He sees when we are indeed broken over sin. He also sees when we do none of these things. And God moves beyond us to reach us... even when it means He must discipline His people.