"Bring us back, our Father, to Your Torah" (Shemoneh Esreh.
In this supplication and in the following one ("forgive us") we say "Our Father.... Our King," which combination is not used in any other Brachah of the Shmone Esreh... The foundation of Repentance is the Awareness that Hashem is actually our Father and that He alone is the Father; and that He is our King. When one becomes well aware of this, he is already turning back to Hashem (repenting) and he is deserving of forgiveness. -- Praise, My Soul