We often hear people saying that everyone is a child of God, usually meaning that God has to protect and bless everyone no matter what. However, according to the Bible, this statement is not true. Everyone is God’s creation, but not everyone is a child of God.
The first and only child of God was Jesus, as I explained in this earlier post. It was Jesus who created the possibility for other people to become children of God, those who believe in him and receive him, through faith (check John 1:12,13 and Galatians 3:26).
The people who make this decision become children of God by adoption, and through this adoption we become God’s heirs, as Paul explains it:
For those who are led by the Spirit of God are the children of God.
The Spirit you received does not make you slaves, so that you live in fear again; rather, the Spirit you received brought about your adoption to sonship. And by him we cry, “Abba, Father.”
The Spirit himself testifies with our spirit that we are God’s children. Now if we are children, then we are heirs—heirs of God and co-heirs with Christ, if indeed we share in his sufferings in order that we may also share in his glory. (Romans 8:14-17)