The “Teach” book of the Watchtower (spanish edition), pages 218 to 219, says:
¿Who is Michael the Archangel?
The Word of God does not say anywhere that there are two armies of faithful angels, one headed by Michael and one by Jesus. Therefore, it is logical to conclude that Michael is none other than Jesus Christ in heaven.
The Watchtower 2010, April first, page 19, the spanish edition translated into English.
Is Jesus Michael the Archangel?
So Michael the archangel is Jesus before coming to Earth. After his resurrection he returned to heaven, and he resumed his service as Michael, the chief angel, “for the glory of God the Father” (Philippians 2 verse 11).
The Watchtower claim that since 1914 Michael the archangel performs his duties in heaven as king …
However, this teaching does not match at all with what we read in Hebrews 2 verse 5
The American Standard Version, says
For not unto angels did he subject the world to come, whereof we speak.
Amplified Bible renders as follows:
For it was not to angels that God subjected the habitable world of the future, of which we are speaking.
King James Version renders this verse as follows:
For unto the angels hath he not put in subjection the world to come, whereof we speak.
So you see that is impossible for an archangel to rule the world to come, and the reason is simple according to Acts 2 verse30, which says:
Therefore being a prophet, and knowing that God had sworn with an oath to him, that of the fruit of his loins, according to the flesh, he would raise up Christ to sit on his throne. King James Version.
So we see that a man according to the flesh, and not a spirit being, will sit on David’s throne. The watchtower contradicts the Bible in this fundamental doctrine of the holy Scriptures. ¿Who, then, is a real apostate? Well, the Watchtower society of the Jehovah’s Witnesses.