No, there are two different manifestations of the adoption described in the Bible : 1) an adoption unto the becoming of the spiritual sons of God, 2) an adoption by God unto our new physical bodies; I.E, a spiritual adoption and a bodily adoption. Both adoptions resulting from being singly predestinated through Christ.
[1Jo 3:2 KJV]
2 Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is.
[Rom 8:23 KJV]
23 And not only [they], but ourselves also, which have the firstfruits of the Spirit, even we ourselves groan within ourselves, waiting for the adoption, [to wit], the redemption of our body.
[Rom 8:15 KJV]
15 For ye have not received the spirit of bondage again to fear; but ye have received the Spirit of adoption, whereby we cry, Abba, Father.
[Gal 4:3-7 KJV]
3 Even so we, when we were children, were in bondage under the elements of the world:
4 But when the fulness of the time was come, God sent forth his Son, made of a woman, made under the law,
5 To redeem them that were under the law, that we might receive the adoption of sons.
6 And because ye are sons, God hath sent forth the Spirit of his Son into your hearts, crying, Abba, Father.
7 Wherefore thou art no more a servant, but a son; and if a son, then an heir of God through Christ.
That's what I've been saying all along. Because of God's Spirit within us, we can be called sons of God even though we do not appear to be sons of God. We are predestined for the future adoption which is the redemption of the body.