The Kingdom of God has Rulership in each Realm.

When God created the heavens and the earth, He established different realms with positions of authority – the third heaven, the Universe, and the earth. These are all within God`s great kingdom rule and were established by the Lord Jesus Christ,

`For by Him, (Christ) all things were created that are in heaven and that are on earth, visible and invisible, whether thrones or dominions or principalities or powers. All things were created through Him and for Him.` (Col. 1: 16)

There is a descending order of authority instituted – heaven and earth, involving thrones, dominions, principalities, and powers.

`The Lord has established His throne in heaven and His kingdom rules over all.` (Ps. 103: 19)

God gave an angel opportunity to rule within His great kingdom.

Lucifer was the most beautiful and powerful angel who had authority as king over a whole order of angels. However Lucifer aspired to ascend into the highest heaven, `the sides of the north,` (hidden quarters), the abode of the eternal God.

`..you have said in your heart; “I will ascend into heaven, I will exalt my throne above the stars of God, I will also sit on the mount of the congregation on the farthest sides of the north; I will ascend above the heights of the clouds, I will be like the Most High.”` (Isa. 14: 13 & 14)

So, by divine decree, because of his pride, Lucifer was cast out of the third heaven, being found unworthy to rule there. Lucifer then usurped the area of Principalities and Powers in the universal realm. His name is changed from `Star of the morning,` to Satan, meaning the opponent, the accuser.

God could have destroyed Satan and the fallen angels, however the angels of God, (and later man) need to see how Satan will operate from that position.  Will he rule righteously? God will judge.

God also gave man opportunity to rule in the earthly realm of the Kingdom of God.

`God said, Let us make man in our image, according to our likeness; let them have dominion over the fish of the sea, over the birds of the air, and over the cattle, over all the earth and over every creeping thing that creeps on the earth.` (Gen. 1: 26)

Man however, when tempted chose to believe the lie of the enemy and came under the sway of Satan. Dominion of the earth came under Satan.