The parable often called the Wheat and the Tares gives hope that one day all will be made right.
It is hard to imagine what the world would be like without Saul of Tarsus (the apostle Paul), but it would have been harder...
Through a series of mistakes by the disciples, Jesus taught them and us what following him is not.
Jesus fulfilled the entire Old Testament by suffering, rising from the dead, and having forgiveness preached to all the nations.