Whether it is proper to the rational nature to be adopted?

Objections

Objection 1 : It would seem that it is not proper to the rational nature to be adopted. For God is not said to be the Father of the rational creature, save by adoption. But God is called the Father even of the irrational creature, according to Job 38:28: "Who is father of the rain? Or who begot the drops of dew?" Therefore it is not proper to the rational creature to be adopted.
Objection 2 : Further, by reason of adoption some are called sons of God. But to be sons of God seems to be properly attributed by the Scriptures to the angels; according to Job 1:6: "On a certain day when the sons of God came to stand before the Lord." Therefore it is not proper to the rational creature to be adopted.
Objection 3 : Further, whatever is proper to a nature, belongs to all that have that nature: just as risibility belongs to all men. But to be adopted does not belong to every rational nature. Therefore it is not proper to human nature.