The establishing of the child's status as a member of the family is only a beginning. The real task remains: to establish a genuinely filial relationship between your adopted child and yourself. It is this, above all, that you want to see. Accordingly, you set yourself to win the child's love by loving the child. You seek to excite affection by showing affection. So with God. And throughout our life in this world, and to all eternity beyond, he will constantly be showing us, in one way or another, more and more of his love, and thereby increasing our love to him continually. The prospect before the adopted children of God is an eternity of love.

Knowing God, Packer, pg 216