Dear Sister, our God has been ruling since Eternity. If the LORD was not ruling His Kingdom no one could be saved.
There was never a moment that the LORD was not in ALL Authority, Power and Control.
It is here on earth that man fell under the power of satan, sin and death.
This is why the LORD said to Pontius Pilate "My Kingdom is not of this world".
At the same time the WORD says "The earth is the LORD’s, and all its fullness, The world and those who dwell therein."
Again = "This is what the LORD says: “Heaven is my throne, and the earth is my footstool.
At the same time there is the ruling authority of satan and his angels.
Satan is NOT locked up in prison - nor is he bound from roaming this earth and causing devastation and harm.
"Be sober, be vigilant; because your adversary the devil walks about like a roaring lion, seeking whom he may devour. Resist him, steadfast in the faith, knowing that the same sufferings are experienced by your brotherhood in the world." 1 Peter 5
"But even if our gospel is veiled, it is veiled to those who are perishing, whose minds the god of this age has blinded, who do not believe, lest the light of the gospel of the glory of Christ, who is the image of God, should shine on them." 2 Cor 4:4
Satan is here on earth, he is not locked up yet = Acts 5:3
Then Peter said, “Ananias, how is it that Satan has so filled your heart that you have lied to the Holy Spirit and have kept for yourself some of the money you received for the land?
The Apostle Paul said this concerning someone in the Lord who was in great sin: "hand this man over to Satan for the destruction of the flesh, so that his spirit may be saved on the day of the Lord."
Satan is currently not locked up - "The God of peace will soon crush Satan under your feet. The grace of our Lord Jesus Christ be with you." Romans 16:20
Dear Sister, embrace ALL of the Word of Truth and you will have greater understanding - PEACE