What does the line woe all cometh clear at last represent in Oedipus Rex?

In Oedipus Rex, the line "woe all cometh clear at last" represents the tragic revelation and downfall of Oedipus. His past deeds, unknowingly committed, are brought to light, leading to a disastrous turn in his fortunes and the realization of the tragic truth behind his fate. The line signifies the climax and culmination of Oedipus' tragic journey and the profound sense of regret and despair he experiences upon discovering the truth of his actions.