Father-Son Dependence

"Dependence thus goes both ways, but the dependence is not symmetrical or identical.  At least we can say that the Son depends "filially" on the Father, and the Father "paternally" on the Son.  That is not saying much, though.  We might also say that the Son's dependence on the Father is the dependence of begottenness; the Son does not "beget" the Father....The Father does not depend on the Son as one begetting him but depends on the Son for his status as Father.  He depends on the Son as the one who does his will so fully that he is the living will of the Father, and he depends on the Son as his image, his radiance, and the exact representation of his glory." - Leithart, Athanasius, p87.