It is written in Philippians 2:9-11 that every knee shall bow at the name of Jesus, in heaven and on earth and under the earth, and every tongue confess that Jesus Christ is Lord. In reference to those in heaven, does this mean that the archangels Michael and Gabriel will also bow at the name of Jesus and confess Him as Lord, or is this just referring to the saints in heaven?
The Greek word translated heaven in this passage literally applies to heaven itself, the abode of God and angels. This would include Michael, Gabriel and all the heavenly host as well as the saints from all ages. It also includes everyone on Earth. This is the human race, whether believer or not. And finally it includes everyone under the Earth, Satan and his hordes as well as the unsaved dead.
Of course, many of those on Earth and all those under the Earth will not have accepted Him as their Savior. But after His victorious return when He summons all the survivors to judgment, everyone will have to admit He’s the Lord, just like He’s always claimed to be. And when they’re led away to eternal punishment, they’ll finally accept His right to judge them. As Zechariah 14:9 explains about that day, “The LORD will be king over the whole earth. On that day there will be one LORD, and his name the only name.”
This will also be true of Satan as he’s taken in chains to begin his 1000 year prison sentence (Rev. 20:1-3).