Lexically, monogenēs is a compound of monos (only) and genos (kind or offspring). It can mean unique, but in the context of Johannine Christology it refers specifically to the Son's eternal relation to the Father. Christ is more than a unique Son; he is uniquely begotten, derived from the Father by eternal generation—a doctrine that is key to rightly understanding this
I would agree with you on part of this statement above - with the exception of the bolded material. That part is
not correct. "Eternal generation" is an invented term that is a self-contradicting oxymoron. Christ Jesus is not and has not been "eternally generated" by being continually "begotten" from the Father.
To be generated is done at a single, specific point in time. It is
not an action that is eternally being performed.
The meaning behind the "begotten" status is given to us in Psalms 2:77, which prophecy concerns the bodily-resurrected Jesus Christ
ascending to the Father the morning after His resurrection: the only One who would have accomplished this as of that point in time. "I will declare the decree: the Lord hath said unto me, Thou art my Son;
THIS DAY have I begotten thee. Ask of me, and I shall give thee the heathen for thine inheritance, and the uttermost parts of the earth for thy possession." We know that this request was asked
and answered, because Christ told the disciples in Matthew 28:18 that this power over the nations had already been given to Him by the Father, even before His Acts 1 final ascension.
Paul in Acts 13:32-34 interprets this Psalms 2:7 passage about the timing for the ascended, resurrected Christ being "begotten" in heaven on that particular day. "And we declare unto you glad tidings, how God hath fulfilled the same unto us their children,
in that he hath raised up Jesus again; as it is also written in the second psalm, Thou art my Son,
THIS DAY have I begotten thee. And as concerning that he raised him up from the dead, now no more to return to corruption, he said on this wise, I will give you the sure mercies of David."
The Psalms also gives us the exact time of day that Christ Jesus was "begotten" in heaven on the day of His resurrection. Psalms 110:3 in the LXX describes the ascending, resurrected Christ this way: "With thee is dominion in the day of thy power, in the splendours of thy saints:
I have begotten thee from the womb before the morning.
" Something was "born" in heaven before the morning dawned which had never appeared there before that time. We know that the bodily-resurrected Christ ascended to God in heaven "while it was yet dark" (John 20:1) before the morning had fully dawned, because He told Mary that He was about to ascend to God the Father at that time in John 20:17 - before the morning had fully come, just as Psalms 110:3 had predicted long ago.
Christ also claimed this unique "first-
begotten of the dead" status in Revelation 1:5.
As of that point in time, Christ Jesus was still the only one who had yet ascended to God the Father in heaven in a glorified, bodily-resurrected human form. He was still the "only-begotten" at that point.
But this "First-born" and "First-begotten" status that uniquely belonged to Christ would also be followed by Christ presenting the rest of the bodily-resurrected saints to the Father. They, too, would also be "begotten" by God in heaven in the same manner as Christ their brother who had been the first to precede them.
In other words, Christ Jesus may have been called the
"Only-begotten of the Father"
as of the time John 1:14 was written, but the
"First-begotten" Christ would not always be the
only one who would be "begotten" in this manner.
All the saints are to be eventually "presented faultless before the presence of His glory, with exceeding joy" (Jude 24). "Behold, I and the children whom thou hast given me" is the picture of a triumphant First-born,
First-begotten Christ presenting the bodily-resurrected children of God to His Father (Heb. 2:13). This is the point at which they, too, are also finally "begotten" in heaven by the Father in the perfected state of glorified incorruption.