喔，子居然在永恒里不是子？！🙀

before the Son came to earth, and even before the world was created, for all eternity the Father has been the Father, the Son has been the Son, and the Holy Spirit has been the Holy Spirit. These relationships are eternal, not something that occurred only in time. We may conclude this first from the unchangeableness of God (see chapter 11): if God now exists as Father, Son, and Holy Spirit, then he has always existed as Father, Son, and Holy Spirit. We may also conclude that the relationships are eternal from other verses in Scripture that speak of the relationships the members of the Trinity had to one another before the creation of the world. For instance, when Scripture speaks of God’s work of election (see chapter 32) before the creation of the world, it speaks of the Father choosing us “in” the Son: “Blessed be the God and Father of our Lord Jesus Christ … he chose us in him before the foundation of the world that we shouq'wld be holy and blameless before him” (Eph. 1:3–4). The initiatory act of choosing is attributed to God the Father, who regards us as united to Christ or “in Christ” before we ever existed. Similarly, of God the Father, it is said that “those whom he foreknew he also predestined to be conformed to the image of his Son” (Rom. 8:29). We also read of the “foreknowledge of God the Father” in distinction from particular functions of the other two members of the Trinity (1 Peter 1:2 NASB; cf. 1:20). Even the fact that the Father “gave his only Son” (John 3:16) and “sent the Son into the world” (John 3:17) indicate that there was a Father-Son relationship before Christ came into the world. The Son did not become the Son when the Father sent him into the world. Rather, the great love of God is shown in the fact that the one who was always Father gave the one who was always his only Son: “For God so loved the world that he gave his only Son …” (John 3:16). “But when the time had fully come, God sent forth his Son” (Gal. 4:4).

 Grudem, W. A. (2004). Systematic theology: an introduction to biblical doctrine (p. 250). Leicester, England; Grand Rapids, MI: Inter-Varsity Press; Zondervan Pub. House.