Ironically, this same sort of argument is made by Trinitarians and Modalists against those holding to a “unitarian” view of God and Christ (including the “Arian” view) all the time. It is said that any view which denies that Christ is “fully God” and does not affirm that he is an uncreated, eternal being is less honoring to Christ (and less glorious and praiseworthy) than one that affirms his “absolute deity.” But of course, this simply isn’t the case. The view that most honors and glorifies Christ is whatever view that is actually affirmed by scripture.
As argued in my earlier article in which this language from John 6 is examined, I understand Christ’s “descent from heaven” language as being an example of the same sort of figurative imagery as found in James 1:16 and 3:15, 17. As I remarked in the article, these verses from James do not mean that the good things in our lives literally descend from heaven (much less that they undergo some kind of mystical, supernatural transformation before we receive them). What James meant is clear enough: God is the author and source of the good things in our lives (including the wisdom by which the saints should live). And just as God is the direct source of “all good giving and every perfect gratuity,” so God was the direct source of the ultimate blessing – i.e., the Son whom he supernaturally generated in the womb of Miriam (Luke 1:34-35).
14 in Whom we are having the deliverance, the pardon of sins,
15 Who is the Image of the invisible God, Firstborn of every creature,
16 for in Him is all created, that in the heavens and that on the earth, the visible and the invisible, whether thrones, or lordships, or sovereignties, or authorities, all is created through Him and for Him,
17 and He is before all, and all has its cohesion in Him.
18 And He is the Head of the body, the ecclesia, Who is Sovereign, Firstborn from among the dead, that in all He may be becoming first,
19 for in Him the entire complement delights to dwell,
20 and through Him to reconcile all to Him (making peace through the blood of His cross), through Him, whether those on the earth or those in the heavens.