Satan is not the one who is actually locked into the Bottomless Pit [Revelation 9:11].
Incorrect.
Rev 20:1-3
[1] And I saw an angel come down from heaven, having the key of the bottomless pit and a great chain in his hand.
[2] And he
laid hold on the dragon, that old serpent, which is the Devil, and Satan, and
bound him a thousand years,
[3] And
cast him into the bottomless pit, and shut him up, and set a seal upon him, that he should deceive the nations no more, till the thousand years should be fulfilled: and after that he must be loosed a little season.
Revelation 20 is saying that ONLY Satan was actually locked into the bottomless pit. It is a symbol that he cannot deceive the nations (Gentiles) so that the church could be built.
But when we read in Revelation 12...
Rev 12:7-10
[7] And
there was war in heaven: Michael and his angels fought against the dragon; and the dragon fought and his angels,
[8] And prevailed not; neither was their place found any more in heaven.
[9] And the
great dragon was cast out, that old serpent, called the Devil, and Satan, which
deceiveth the whole world: he was cast out into the earth, and
his angels were cast out with him.
[10] And I heard a loud voice saying in heaven,
Now is come salvation, and strength, and the kingdom of our God, and the power of his Christ: for the accuser of our brethren is cast down, which accused them before our God day and night.
Contary to popular belief, the heaven in verse 7 was not talking about literal heaven where God is. Rather the heaven symbolics the kingdom of heaven where woman dwells. The woman is the congregation of Israel. IN this case BEFORE the cross is old testament congregation. In verse 9, not only Satan was cast out but also his angels (messengers - false prophets and christs). Please notice that they were cast out of the kingdom of heaven (not to be confused with literal heaven) in a sense that they are no longer among the congregation of Israel, accusing brethern all day long. That is why in verse 10, the salvation has come through the New Testament congregation AFTER the cross.
Read Revelation 12:7-12 and you will notice that Satan is still in Heaven accusing our brethren day and night before God....until that JESUS decide to clean the house in Heaven from its undesirable elements.
Like I said, you got wrong heaven. God was not talking about Satan appearing before Him in heaven. Rather he was in kingdom of heaven where congregation of Israel dwells, on earth. Christ Jesus has "cleaned the house" by cast Satan and false prophts and christs out of old testament congregaiton which has fallen along with the death of Christ. And in three days, Christ rebuilt the congregation. This time includes with the Gentiles where Satan will not be able to deceive them until the building of the church is complete!
Now if you pay attention there is an interesting info Concerning Revelation 12:10
IT is said that Jesus is AFFIRMING HIS AUTHORITY by CASTING SATAN OUT OF HEAVEN .....That follow the SCENERY WHO HAPPENED IN HEAVEN MENTIONED IN Revelation 11:15-19 when Jesus was given the Kingdom ...
Revelation 12:10
10 An I heard a great voice in heaven, saying, Now is come the salvation, and the power, and the kingdom of our God, and the authority of his Christ:for the accuser of our brethren is cast down, who accuseth them before our God day and night.
As long as you got heaven right. The reason why people believe there was a war in literal heaven where God is is that of the belief is that
the Serpent was once an angel. This whole myth is based on these passages where it says the Serpent led a war in heaven, which he lost and he and his army of angels were cast down. Thus the fallen angel myth perpetrated in the church today. Surely you've heard of it.
Satan was never an angel and was never in heaven (where God is) and never led a army of rebellious angels to war against Michael the arch angel and his good angels. Revelation 12, like the rest of Revelation, is all about
symbolism,
not talking about literal heaven and literal fallen Angels as the vast majority of Christians believe. It's not a literal Dragon/Serpent, a literal pregnant Woman in heaven with literal stars on her head or Devil tails casting down stars. How the church has come to believe this is literally talking about heaven is a mind scrambler. Yet here we are.