“You can tell for sure that you are now fully adopted as his own children because God sent the Spirit of his Son into our lives crying out, ‘Papa! Father!'” (Galatians 4:6-7 MSG).
The natural attitude of people toward God is not like this. We do not really trust him, love him, or pursue him. But upon conversion, a supernatural change occurs. Our affection toward God begins to warm, and we turn to him. The Spirit convinces your spirit of this truth: your destiny is in the hands of a loving Father. He is a good father, who has recorded your name in the Book of Life with the blood of the Lamb. And the Spirit of God is urging you to listen as he affirms in your spirit that you are a child of God. You have been adopted into the family.