"Satan got kick out of heaven before Adam was created".... and: "Satan been on earth with all his angels since this
time, he was here on earth in the days of Adam, most likely before Adam was created," are both assumptions.
The war in heaven could have happened after Adam's creation. Some believe it did. They believe this and say, Satan and the angels were jealous of mankind, that humanity was being offered salvation, which is not something angels have. Which is just more assumptions.
According the scriptures Satan was in the Garden of Eden. Satan had already got kick out of heaven. The word of the LORD came again unto me, saying, Son of man, say unto the prince of Tyrus, Thus saith the Lord GOD; Because thine heart is lifted up, and thou hast said, I am a God,
I sit in the seat of God, in the
midst of the seas; yet thou art a man, and not God, though thou set thine heart as the heart of God: Behold, thou art wiser than Daniel; there is no secret that they can hide from thee: With thy wisdom and with thine understanding thou hast gotten thee riches, and hast gotten gold and silver into thy treasures: (Ezekiel 28:1-3)
This is not an ordinary man, notice the clue. Thou are wiser than Daniel? The prince of Tyrus is a Gentile, how can he be wiser than Daniel when it comes to the word of God. Israel possesses the oracles/word of God. Remember that Satan is the god of the Gentiles that have not came under the commonwealth of Israel. This man is Satan; Satan is wiser than Daniel take a look.
Son of man, take up a lamentation upon the king of Tyrus, and say unto him, thus saith the Lord GOD; Thou sealest up the sum,
full of wisdom, and perfect in beauty.
Thou hast been in Eden the garden of God; every precious stone was thy covering, the sardius, topaz, and the diamond, the beryl, the onyx, and the jasper, the sapphire, the emerald, and the carbuncle, and gold: the workmanship of thy tabrets and of thy pipes was prepared in thee in the day that thou wast created.( Ezekiel 28: 12-13)
Do you recall the king of Tyrus in the Garden of Eden? I do recall the serpent which is called the devil and also Satan. Let's see who this really is.
Thou art the anointed cherub that covereth; and I have set thee so: thou wast upon the
holy mountain of God; thou hast walked up and down in the midst of the stones of fire.
Thou wast perfect in thy ways from the day that thou wast created,
till iniquity was
found in thee. (Ezekiel 28:14-15)
Now we see this is not a man, but a cherub angel. In some cases the Lord calls angels men. But notice something; this cherub which is Satan had some authority. He actually was on the mountain of God, until he sinned. We should pay close attention to that. What happened when Satan sinned against God?
Take a look.
By the multitude of thy merchandise they have filled the midst of thee with violence, and
thou hast sinned: therefore
I will cast thee as profane out of the mountain of God: and
I will destroy thee, O covering cherub, from the midst of the stones of fire.
Thine heart was lifted up because of thy beauty; thou hast corrupted thy wisdom by reason of thy brightness: I will cast thee to the ground; I will lay thee before kings, that they may behold thee. (Ezekiel 28:16)
What happened when he got full of himself? He was thrown out. When the Lord blesses us with knowledge, wisdom and also understanding be careful not to get full of yourself and forget whose blessings it is and were it came from. It is the Lord's, not our own.