This part of Ezekiel's warning to the exiles is similar to 18:21-32.
33:10-11 The Israelites seem to have taken on more personal responsibility for their sufferings than they had earlier (cf. ch. 18). They wondered how they could survive God's judgments. This is the first indication in the book that they were conscious of their own sins. The Lord affirmed again that He took no pleasure in putting people to death for their sins (cf. 18:23, 32). He much preferred for them to turn from their sin and live (cf. 2 Pet. 3:9). He also appealed again to the people to do just that: to repent of their wicked ways and live (cf. 18:30-31).
33:12-13 The right conduct of a usually righteous person would not exempt him from judgment if he sinned. Neither would the sinful conduct of a usually sinful person exempt him from forgiveness if he repented. The usually righteous person should not take God's promise of life for righteous living as a guarantee that he was exempt from punishment even if he sinned.434
33:14-16 God's warnings that the wicked would die because of their sinfulness also needed to be understood properly. They would die only if they failed to repent. If the wicked turned from his sins and obeyed the Mosaic Law, he would not die (prematurely). God would not hold his former sins against him. He would receive his life as a reward for his righteous conduct.
33:17 The Jews were saying that the Lord was not dealing with them justly, but it was really their conduct and their thinking that were not right.
33:18-19 If a normally righteous person abandoned his righteous lifestyle and pursued sin, he would die for it. But if a normally sinful person abandoned his sinful lifestyle and did what was right, he would live for it.
33:20 The people persisted in claiming that the Lord's ways of dealing with them were not just. Yet Yahweh assured them that He would deal with each of them fairly, according to their own individual behavior. God does not blame one person for another person's sins.
In our day many people refuse to take personal responsibility for their lives and chose rather to blame someone else for the way they live (e.g. a parent, employer, teacher, abuser, the devil, God). We may not be responsible for the actions of others that have resulted in our present condition, but we are responsible for how we conduct ourselves in our present condition.
This message repeats God's appointment of Ezekiel as a watchman over Israel (ch. 3) and His assurance of personal responsibility (chs. 3 and 18). Evidently the exiles had difficulty accepting this revelation. They tended to view Ezekiel as an entertainer (vv. 30-32) and God as unfair.