Whether it is fitting that the whole Trinity should adopt?

❌ Objection 1 : It would seem unfitting that the whole Trinity should adopt. For adoption is said of God in likeness to human custom. But among men those only adopt who can beget: and in God this can be applied only to the Father. Therefore in God the Father alone can adopt.

❌ Objection 2 : Further, by adoption men become the brethren of Christ, according to Rm. 8:29: "That He might be the first-born among many brethren." Now brethren are the sons of the same father; wherefore our Lord says (Jn. 20:17): "I ascend to My Father and to your Father." Therefore Christ's Father alone has adopted sons.

❌ Objection 3 : Further, it is written (Gal. 4:4,5,6): "God sent His Son . . . that we might receive the adoption of sons. And because you are sons of God, God hath sent the Spirit of His Son into your hearts, crying: 'Abba' [Father]." Therefore it belongs to Him to adopt, Who has the Son and the Holy Ghost. But this belongs to the Father alone. Therefore it befits the Father alone to adopt.