How to reconcile the belief that the "angel of the Lord" in the OT is the pre-incarnate Jesus with Hebrews 1:5?

**Summary of the question**: How can the "angel of the Lord" be the pre-incarnate Jesus if Hebrews 1:5 makes the point that God never said "Thou art my Son" to *any angel*? Those who believe Michael the archangel is Jesus (JW, SDA, and others) usually get Hebrews 1:5 quoted by those who don't share their belief about Michael in an effort to disprove their belief. But what about those who believe the angel of the Lord is the pre-incarnate Jesus? Doesn't the same verse disprove that belief? This is a fairly widely accepted stance, in my opinion. We even have the following question with good answers on this very site: https://christianity.stackexchange.com/questions/89609/on-what-basis-do-some-protestants-believe-the-angel-of-the-lord-is-the-pre-incar However, some groups like Jehovah's Witnesses (due to the belief that Jesus is Michael the Archangel) have to respond to questions like this one: https://christianity.stackexchange.com/questions/78168/dont-the-questions-of-hebrews-15-and-113-demand-an-answer-of-none-so-how-c **How would a Protestant who believes the angel of the Lord is the pre-incarnate Jesus (or any Christian who believes this) respond to a very similar question?** If one believes that the angel of the Lord was the pre-incarnate Jesus, how can that be reconciled with Hebrews 1:5 (KJV): > For unto which of the angels said he at any time, Thou art my Son, this day have I begotten thee? And again, I will be to him a Father, and he shall be to me a Son? I've heard some explain this by saying that the angel of the Lord was not a created angel so that excludes him from the context of "the angels" in this passage. However, the verse doesn't say, "For unto which of the *created* angels said he at any time"... Of course, the basic meaning of "angel" in both the Hebrew and Greek is "messenger". But that doesn't really change the meaning of the passage either. I'm curious how this could be answered satisfactorily.