Okay, First thought: The thought actually comes from the note at the bottom of the OSB, in ref. to Gen. 5:3 -
5:3 - Seth was begotten from Adam and Eve. This threefold relationship illustrates, to a certain extent, the Holy Trinity. Adam had no human father. He was begotten by no one. Thus, he was unbegotten. Seth was begotten from Adam. Eve was neither unbegotten nor begotten. Instead she proceeded from Adam (2:21). Therefore, Eve and Seth were related to the unbegotten Adam, but each in a unique manner - Eve proceeded from Adam, but Seth was begotten from him. Each person had his or her own distinct and unique properties - unbegotten, begotten and proceeding - but all three possessed the same human nature.
Similarly, the manner in which these three existed images the Holy Trinity. God the Father is Unbegotten; God the Son is Begotten from the Father, and God the Holy Spirit proceeds from the Father. These distinct and unique properties - unbegotten, begotten, and proceeding - distinguish each of the individual Persons of the Holy Trinity from each other; yet, They are one in nature. (John of Damascus) - Orthodox Study Bible, pg. 10
Okay, so, well all know that Amber doesn't take the entire Bible, word for word literally. Some parts are, some parts aren't. I don't believe that the very beginning, the creation, is literally what happened. I don't think God created woman out of man's rib. I view the Creation story as more myth and allegory, you know? But why the image of woman being created out of man? The above quote makes it make sense. Just quite nice to run into.
The relevant bible passage is Gen. 16: 7 - 13, and, again, the thought comes from the notes:
16:7 - The Lord is the Father, and the Angel is His Son (Hilary of Poitiers). And the prophet Isaiah calls Him "the Angel of Great Counsel" (Is 9:5). "The Son is called Angel because He alone reveals the Father" (Athanasius the Great).
16:8 - The Lord asked Hagar questions, not because He was ignorant, but for Hagar's sake and for ours. After He became Man, He also asked questions in the four Gospels, not because He was ignorant, but for the sake of the immediate listeners and of the faithful. For He is God in the flesh, and therefore, never ignorant of anything (John of Damascus).
16:9 - Since He is God, the Angel Commanded Hagar. She obeyed (v. 15). This Angel is the Word of God.
16:10 - This statement by the Angel could not have been made by a created angel, for only God can say, "I will surely multiply your seed exceedingly, that it may not be counted because of its multitude." No created angel can do this. The Angel is God the Son.
16:11 - The Angel then spoke to Hagar concerning the Father and said, "The Lord has taken notice of your humiliation."
16:13 - Hagar called the Angel who appeared to her both Lord and God. The Church knows Him as the Only-begotten of the Father (Jn 1). As the Father's Only-begotten, He is "true God of true God" (Creed). One meaning of the name God is, 'You are the God who sees me'. The Only-begotten sees everything. So do God the Father and God the Holy Spirit. - OSB, pg. 21
Okay, so, a) never had anyone tell me that the angel in this passage was God. It makes sense, given the notes at the bottom. b) and this is a wacky thought, and I am aware of this, but here it be:
So, God is outside of time. When God the Son became Incarnated, the 'process' was irreversible. The human body was perfected, glorified, and taken up to Heaven. God the Son would, for all eternity, have that body. So, um, when people see the Angel, God the Son, in the Old Testament, could they be seeing the physical form of Jesus? Before He was, in linear time, born? Not that it makes any difference, it's just a wacky, wacky thought that occurred to me. Too much scifi?