As Jesuit priest Fr. Josef Rodriguez said in a homily: "Jesus knew that the glory of Mt. Tabor could only make sense in the light of his eventual Resurrection. He’d [first] have to endure the Passion leading to another mountaintop: Calvary."
Jesus teaches his followers that the reign of God is like a buried treasure that a man found in a field and, rejoicing at his good fortune, then proceeded to sell all that he had to purchase that field. In another parable, Jesus says that God’s kingdom is like a merchant’s search for fine pearls. Once found, he sold everything else he owned and bought the “pearl of great price.”
The parable of the wheat and the weeds sets the classic battle between the good guys and the bad guys, the heroes and the villains, the forces of light and the forces of darkness.