Because he loved us, he planned that we should be his own children. It is through Jesus Christ that we are God's children. That is the way God wanted it to be.
Romans 8:15-17
The Spirit you received is not the spirit of slaves bringing fear into your lives again; it is the spirit of sons, and it makes us cry out, �Abba, Father!� The Spirit Himself bearing united witness with our spirits that we are children of God. And if we are children we are heirs as well; heirs of God and coheirs with Christ, sharing His sufferings so as to share His glory.
Hebrews 2:12
He said, `I will tell my brothers about you. I will sing praise about you among those who gather together for worship.'
Ephesians 1:4
Before the world was made, God chose us in Christ. He chose us that we should be holy and good before him.
Psalm 139:16
You had scrutinised my every action, all were recorded in Your book, my days were listed and determined, even before the first of them occurred.
1 Corinthians 13:11
When I was a child, I talked like a child. I understood like a child. I thought like a child. But when I became a man, I stopped doing things like a child.