ok if you say so, then tell us is the Son biological thinking here? Hebrews 1:1 "God, who at sundry times and in divers manners spake in time past unto the fathers by the prophets,"Hebrews 1:2 "Hath in these last days spoken unto us by his Son, whom he hath appointed heir of all things, by whom also he made the worlds;"Hebrews 1:3 "Who being the brightness of his glory, and the express image of his person, and upholding all things by the word of his power, when he had by himself purged our sins, sat down on the right hand of the Majesty on high;"
here the EXPRESS IMAGE ....... of, of, of, his Person is “character”
G5481 χαρακτήρ charakter (cha-rak-teer') n.
1. an engraver (the tool or the person).
2. (by implication) an engraving.
3. (hence) a “character,” the figure stamped.
4. (by extension) an exact copy.
5. (figuratively) a representation.
[from charasso “to sharpen to a point” (akin to G1125 through the idea of scratching)]
KJV: express image
Compare: G1125, G1504
and to back this up, the term Son, is not biological. 101G is using the Vine's Expository Dictionary of New Testament Words.
SON: [ 1,,G5207, huios ]
primarily signifies the relation of offspring to parent (See John 9:18-John 9:20; Gal 4:30. It is often used metaphorically of prominent moral characteristics (See below). It is used in the NT of (a) male offspring, Gal 4:30; (b) legitimate, as opposed to illegitimate offspring, Heb 12:8; (c) descendants, without reference to sex, Rom 9:27; (d) friends attending a wedding, Matt 9:15; (e) those who enjoy certain privileges, Acts 3:25; (f) those who act in a certain way, whether evil, Matt 23:31, or good, Gal 3:7; (g) those who manifest a certain character, whether evil, Acts 13:10; Eph 2:2, or good, Luke 6:35; Acts 4:36; Rom 8:14; (h) the destiny that corresponds with the character, whether evil, Matt 23:15; John 17:12; 2Thess 2:3, or good, Luke 20:36; (i) the dignity of the relationship with God whereinto men are brought by the Holy Spirit when they believe on the Lord Jesus Christ, Rom 8:19; Gal 3:26. ...
so the term Son is not in reference to biology when it comes to the Lord Jesus. now again, is the "ARM" of God in Isaiah 63:5 the same Person in Isaiah chapter 53? yes or No.
101G.