1 John 5:1 (NLT)
Everyone who believes that Jesus is the Christ has become a child of God. ...
- It's a popular turn of speech to refer to humans as a children of God, which is true in the sense that the life within all of us originates from the CreatorSource - aka God. What I think John is saying here is that when we believe that Jesus is the messiah, and come to understand what that means about who our Source is and who we are at our fullest potential, we truly come to "new" life as children of God.
-- gmc --