First of all, we read NOTHING in scripture of God creating an angel and then having that angel be born into the human race. Angels “may” appear to men at times in the form of a man, but he is still an angel. A well-known example of that is found in Genesis 18:3 where Abraham, “lifted his eyes and looked, and behold, THREE MEN were standing by him; and when he saw them, he ran from the tent door to meet them, and bowed himself to the ground” (NKJV). Abraham knew that one of the three men was the Lord of glory. Verse 3 bears this out, for after “bowing himself to the ground” he said, “My Lord, if I have now found favor in Your sight, do not pass on by Your servant.” We know the other two were angels, for in verse 22 and 19:1 we read, “Then THE MEN turned away from there and went toward Sodom, but Abraham still stood before the LORD…now the TWO ANGELS came to Sodom in the evening, and Lot was sitting in the gate of Sodom.” I believe Hebrews 13:2 is referring to this very incident, for it says, “Do not forget to entertain strangers, for by so doing some have unwittingly entertained angels.”

If we were to read on in Genesis 19 we would see that the two angels did bear witness to Lot of the sin of Sodom and they were sent to destroy the city for their great wickedness (verse 12-13). This illustrates how God did, at times, send angels as “messengers to men who were on the wrong path.” There was no need, in those instances, for the angels to “be born into sin to be a messenger” to bear witness to them of their sin.

When we come to the New Testament, angels are still used as messengers to men, but again they remain angels and are NOT born into the human race. In Matthew 1:20 “angel of the Lord appeared to him (Joseph) in a dream” to testify of the supernatural birth of Jesus Christ. An angel appeared to Zacharias the priest to inform him that his wife would bear a son and he would be called John (Luke 1:11-13). Angels were also instrumental in giving the Apostle John the great visions of the future judgments leading up to the Revelation of Jesus Christ (see Revelation 4:6-9 with 6:1-7). In fact, they not only foretell the judgments, but they are often used of God to execute His judgments (see Revelation 7:1-3; 8:1, 6-21).

In your question you spoke of being “a messenger to churches.” Perhaps you had in mind Revelation 1:20 which reads, “The mystery of the seven stars which you saw in My right hand, and the seven golden lampstands: The seven stars are THE ANGELS OF THE SEVEN CHURCHES, and the seven lampstands which you saw are THE SEVEN CHURCHES.” What exactly is meant by “the angels of the seven churches?” Are they literal angels who represent the seven churches in Asia Minor (that are the subject of chapters 2 and 3)? Some believe they are, yet others believe they are actually “human messengers” (the word “angel” means “messenger”) who delivered the seven letters to the seven churches or seven men who are in a place of leadership and responsibility in each respective church. We can’t be sure which interpretation is right, but we are convinced that they aren’t men who were formerly angels but were later born into the human race to be a messenger to the churches. I say this because of all that we’ve seen from Scripture regarding angels and because Scripture NEVER speaks of angels in this way. (340.3) (DO)