The video below provides a wonderful earthly picture of a grand cosmic reality:
God the Spirit through the Apostle Paul:
But when the fullness of time had come, God sent forth his Son, born of woman, born under the law, to redeem those who were under the law, so that we might receive adoption as sons. And because you are sons, God has sent the Spirit of his Son into our hearts, crying, “Abba! Father!” So you are no longer a slave, but a son, and if a son, then an heir through God.
(Galatians 4:4-7 ESV)
“If you want to judge how well a person understands Christianity, find out how much he makes of the thought of being God’s child, and having God as his Father. If this is not the thought that prompts and controls his worship and prayers and his whole outlook on life, it means that he does not understand Christianity very well at all.
For everything that Christ taught, everything that makes the New Testament new, and better than the Old, everything that is distinctively Christian as opposed to merely Jewish, is summed up in the knowledge of the Fatherhood of God. “Father” is the Christian name for God. Our understanding of Christianity cannot be better than our grasp of adoption.”
(Knowing God, 201-202)
Also, check out David Murray’s excellent commentary on this video.