The basis for my answer is founded on what I understand to be a fundamentally accepted belief by all Christians. I am mindful of what curiousdannii said here:
Answers don't have to provide references or quotes to authoritative sources if they think it's common knowledge that denomination X teaches doctrine Y, but authors should be ready to provide them if ever challenged. Citing Sources in 2020
I believe it is common knowledge that Christians understand that angels are created beings. Dr. Martyn Lloyd-Jones had this to say about created angels in his book ‘God the Father, God the Son’ (published in 1996). I quote from Chapter 10 which discusses the doctrine of God’s good angels:
Angels, while they are spiritual beings, are nevertheless created beings. They have not existed from eternity... Paul, in Colossians 1:16 very definitely teaches that they were created by the Son.
For by him were all things created, that are in heaven, and that are in earth, visible and invisible, whether they be thrones, or dominions, or principalities or powers. All things were created by him, and for him.
At this point it is important to point out that the New World Translation has chosen to interpret Colossians 1:16 as “by means of him all [other] things were created” and, in verses 16, 17 and 20 the word “other” is also added into the text. I am unaware of any legitimate reason for inserting that additional word “other” into these verses.
Another addition to Scripture found in the New World Translation appears in John 1:3 where it says “apart from him, not even one thing came into existence”. John 1:3 simply says that ALL things were made through Christ Jesus, the Son of God. By introducing that expression “apart from him” the New World Translation is suggesting that the pre-mortal Jesus was himself created.
Now let us go to Hebrews chapter 1 to discover the biblical basis for believing that Jesus is NOT Michael, a created spirit creature. Hebrews 1:5-8 draws a clear distinction between Jesus and the angels:
For to which of the angels did God ever say, ‘You are my Son; today I have become your Father’? Or again, ‘I will be His Father, and He will be my Son’? And again, when God brings His firstborn into the world, He says, ‘Let all God’s angels worship Him.’ In speaking of the angels He says, ‘He makes his angels winds, his servants’ flames of fire.’ But about the Son He says, ‘Your throne, O God, will last forever and ever, and righteousness will be the sceptre of your kingdom.’”
Angels worship Jesus who, as God, is alone worthy of worship. No angel is ever worshipped in Scripture; therefore, Jesus (worthy of worship) cannot be Michael or any other angel (not worthy of worship). The angels are called sons of God (Genesis 6:2-4; Job 1:6; 2:1; 38:7), but Jesus is THE Son of God (Hebrews 1:8; Matthew 4:3-6).
Up until 1969 the Jehovah’s Witness ‘Kingdom Interlinear Translation of the Greek Scriptures’ showed Hebrews 1:6 as saying “...let all God’s angels worship him. Then, in 1971, the New World Translation changed Hebrews 1:6 from saying that all God’s angels worship Jesus to saying that all God’s angels “do obeisance” to him.
Worship language is also evidenced in Revelation 5:13-14 where the Lamb of God (Jesus) is worshiped by every creature in heaven and earth, under the earth and in the sea including the four living creatures. Together they cry out:
To him who sits on the throne and to the Lamb be praise and honour and glory and power, forever and ever!" And the four living creatures said, "Amen!" and the elders fell down and worshiped.
In the New World Translation, every time the word for worship applies to Jesus, they render it as bowing down with respect. But every time the word applies to Jehovah God, they render it as worship. They seem to think that it is Jehovah alone who is being worshipped in Revelation 5:14 (unless they have got round to changing it in the latest edition of their New World Translation).
If Jesus is a created angel, how can he be worshipped? Yet the Bible clearly says that God’s angels worship Jesus (with the exclusion of the fallen angels, obviously). If Jesus is an angel how can he worship himself? Jesus is not just positionaly higher than angels; he is ontologically different from the angels. In fact Jesus shares the same nature as the Father making him God of very God.
The Son is the radiance of God’s glory and the exact representation of his being, sustaining all things by his powerful word (Hebrews 1:3).
Jesus is described as "the radiance of the Father’s glory." The Greek word ‘apaugasma’ (translated "radiance") refers to what shines out from the source of light. How can a “spirit creature” radiate the glory of God or how can an angel no matter how superior uphold and sustain the universe?
But about the Son he says, "Your throne, O God, will last forever and ever, and righteousness will be the sceptre of your kingdom... In the beginning, O Lord, (YHWH) you laid the foundation of the earth, and the heavens are the work of your hands... But you remain the same, and your years will never end” (Hebrews 1:8, 10, 12).
Here the writer of Hebrews quotes Psalm 45:1-6 which is a reference to Yahweh (Jehovah). He then transfers the Psalmists attributes of Yahweh to Jesus, and, in so doing, he acknowledges the Son to be Yahweh, the creator of heaven and earth, the eternal God.
Is Michael, a created angel, the creator of heaven and earth? Is Michael the archangel our Lord and our Saviour, our Redeemer who laid down his life to atone for the sins of the world? Can an Archangel forgive sins or share in God’s glory? The Bible tells us that only God has the power to forgive sins and God will not share his glory with another.
Isaiah 42:8: “I will not give my glory to another.”
Mark 2:5-7; 10: “And Jesus seeing their faith said to the paralytic, "My son, your sins are forgiven." But there were some of the scribes sitting there and reasoning in their hearts, "Why does this man speak that way? He is blaspheming; who can forgive sins but God alone?" "...the Son of Man has authority on earth to forgive sins."
Luke 5:21: And the scribes and the Pharisees began to reason, saying, "Who is this man who speaks blasphemies? Who can forgive sins, but God alone?"
Luke 5:24: "the Son of Man has authority on earth to forgive sins."
It is theologically impossible for Michael the Archangel to be Jesus because that would mean an angel died for mankind’s sins, which would be a futile gesture. Only God incarnate could, himself, pay the price that his perfect justice demanded. The Judge becomes the accused in order to redeem all who are accused, taking their punishment so that they need not be punished. Only divine love and mercy could combine so perfectly with divine justice to deal with our sin and open up heaven to us. No angel could become a perfect human sacrifice for sin because those angels who took on human form (pre-flood) forsook their God-given estate to do that. They incurred God’s judgment for taking on human form. They joined Satan’s ranks by so doing. Never, after that falling away, could any angel become flesh. John 1:14: “The Word became flesh and made his dwelling among us. We have seen his glory, the glory of the One and Only, who came from the Father, full of grace and truth.” Jesus is the Word, not Michael an archangel.
Final question: Has God the Father promised to hand over the kingdom to a created angel? No.
It is not to angels that he has subjected the world to come (Hebrews 2:5).
All of the above Scriptures provide the basis for declaring that Michael is NOT Jesus.