This means it is not the children of the flesh who are the children of God; rather, the children of promise are counted as descendants.

The Spirit himself bears witness to our spirit that we are God’s children.

nor are all the children Abraham’s true descendants; rather “through Isaac will your descendants be counted.”

And if children, then heirs (namely, heirs of God and also fellow heirs with Christ) – if indeed we suffer with him so we may also be glorified with him.

that the creation itself will also be set free from the bondage of decay into the glorious freedom of God’s children.