As we start the third chapter of 1 John, we see in 1 John 3:1a that we are children of God and we are to see that often.
While ABP is not a scholarly work, I would like to reference any material that my teaching was based on or influenced by:
-J. I. Packer, Knowing God (Downers Grove, IL: InterVarsity Press, 1973), chpt. 19, “Sons of God”