The Lord promises that both He and the Son of David will be a Shepherd for His people, prophesying the future Messiah.

Ezekiel prophecies against the "Shepherds:" politicians, religious leaders, and teachers who do not care for their flock spiritually or physically and instead only enjoy the privileges of leadership. Christianity has many modern examples among the clergy today.

Jerusalem has fallen, but the few survivors have not learned to change their ways. Just because they survived this onslaught does not mean they are free from God's wrath if they continue to sin.

God takes no pleasure in killing the wicked, but in the wicked turning back from their evil ways. It's not that we are trying to achieve a net positive when comparing sin and virtue, but whether we are turned toward Him or away from Him at the end.

The Lord offers hope beyond the punishment. He sets Ezekiel as a watchman, responsible for warning people if their sins will lead them to destruction. Whether or not they repent, if Ezekiel knows that they are in danger of destruction, and does not warn them, he is responsible. So are we also set as watchmen.