To be a child means to owe one's existence to another, and even in our adult life we never quite reach the point where we no longer have to give thanks for being the person we are.
What the Father gives is the capacity to be a self, freedom, and thus autonomy, but an autonomy which can be understood only as a surrender of self to the other.
In Christ, for the first time, we see that in God himself there exists--within his inseparable unity--the distinction between the Father who gives and the Gift which is given (the Son), but only in the unity of the Holy Spirit.