For all who are led by the Spirit of God are children of God.
For you did not receive a spirit of slavery to fall back into fear, but you have received a spirit of adoption. When we cry, "Abba! Father!"
References for Romans 8:15
it is that very Spirit bearing witness with our spirit that we are children of God,
References for Romans 8:16
and if children, then heirs, heirs of God and joint heirs with Christ—if, in fact, we suffer with him so that we may also be glorified with him.