God "appointed (Christ) the heir of all things Heb 1:2.
There is nothing in this passage to support the claim that the Son was an “eternal person” within a Godhead. The Son is described as “appointed heir” (verse 2), showing that his position of power and authority is delegated, not innate.
Likewise, it is by inheritance (verse 4) that he has obtained a more excellent name, not by virtue of being a supposed co-equal person within a triune deity.
The phrase “by whom [through whom, RSV] he made the worlds” does not refer to the physical universe. The Greek word translated “worlds” is not kosmos but aiōn, meaning age, dispensation, or indefinite period of time. The passage is therefore speaking of the ages, not planets or galaxies.
Jesus Christ is the chief cornerstone of all ages, antediluvian, patriarchal, Mosaic, Gentile, and Millennial. The Seed was promised to Eve (Genesis 3:15), Abraham rejoiced to see Christ’s day by faith (John 8:56; cf. Galatians 3:8), and the sacrifices under the Law of Moses derived their meaning only because they pointed forward to Christ’s once-for-all sacrifice (Hebrews 10:4, 10). The Law served as a custodian to bring people to Christ (Galatians 3:24). In this sense, the ages were constituted through Christ, since in Him they find their purpose and ultimate fulfillment.
Although Christ was the chief cornerstone in God’s purpose (1 Peter 2:6), foreordained before the foundation of the world (1 Peter 1:20), He was not formed or manifested until “these last times.” He had no personal existence prior to being born of the virgin Mary (Luke 1:31–35).
Thus, “he made the worlds” refers to the new creation, not the original creation. This is clarified in Hebrews 2:5:
“It is not to angels that he has subjected the world to come, about which we are speaking.”
The writer is explicitly addressing the world to come. Jesus is the creator of this coming order. The redeemed are described as a new creation, with Christ as their creator. It is Christ who will bring about the new heavens and new earth, wherein righteousness dwells.