The Watch Tower Society teaches that before his incarnation, and after his resurrection to glory, Jesus is Michael the archangel. ‘ Michael, referred to by some religions as “Saint Michael,” is evidently a name given to Jesus before and after his life on eart h . Michael disputed with Satan after the death of Moses and helped an angel deliver God’s message to the prophet Daniel. (Daniel 10:13, 21; Jude 9) Michael lives up to the meaning of his name,—“Who Is Like God?”—by defending God’s rulership and fighting God’s enemies.—Daniel 12:1; Revelation 12:7.’ - jw.org website However, this was not always the teaching. Indeed they have believed and taught the complete opposite: ‘ ...it is said (of Jesus), ‘Let all the angels of God worship him;’ (that must include Michael, the chief angel, hence Michael is not the Son of God) and the reason is, because he has ‘by inheritance obtained a more excellent Name than they.’’ - The Watchtower, Nov.1879, p.4 Watch Tower v Bible Teaching 1...
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