Final answer:
Oedipus declares he will pursue Laios's murderer as diligently as he would for his own father, unaware of the actual familial connection.
Step-by-step explanation:
The line from Sophocles's play 'Oedipus Tyrannus' or 'Oedipus Rex' where Oedipus says he "will fight for Laios / as i would for my own father" indicates his commitment to finding the murderer of Laios, the former king of Thebes, as if Laios were his own father. This commitment stems from Oedipus's desire to serve his city and its people, not knowing that Laios is actually his biological father. Oedipus's determination is a key aspect of the tragic irony present throughout the play, as he is unaware of his true relationship to Laios and the implications of his own actions.