What is an example of foreshadowing in Oedipus the king?

In Oedipus the King, there are various instances of foreshadowing that hint at the tragic events that unfold. One prominent example occurs in the opening scene, where Oedipus proclaims his determination to find the murderer of Laius. At this moment, the priest warns him, saying, "Beware lest, searching into these things, you find evil for yourself." This statement foreshadows the disastrous consequences that Oedipus faces as he uncovers the truth about his past. Oedipus's hubris and the priest's foreboding words create a sense of impending doom and set the stage for the tragic events that lie ahead.