Most important innovations that Sophocles the Author brought to "Oedipus the King", were religious paradox, and dramatic Irony!

The most important innovations Sophocles brings to Oedipus the King, is the way he brings religious paradox and dramatic irony together making fate a new concept and relating that to a monotheistic theology as apposed to a polytheistic one.
Sophocles uses dramatic irony in the play by showing irony and profoundness of fate, as it plays out in this story. Before the play began, an oracle was brought to king Laios, and queen Jocasta, telling them that their unborn son will kill his father and marry his mother. When the baby is born, Laios gave the child to a shepard to die in the hills, but…