In Revelation 11 it says:
The seventh angel sounded his trumpet, and there were loud voices in
heaven, which said: “The kingdom of the world has become the kingdom
of our Lord and of his Messiah, and he will reign for ever and ever.”
The "last trumpet" signals the end of history. This declaration makes it clear that Jesus has not yet accomplished full sovereign control over this world.
In Luke 19:
While they were listening to this, he went on to tell them a parable,
because he was near Jerusalem and the people thought that the kingdom
of God was going to appear at once. He said: “A man of noble birth
went to a distant country to have himself appointed king and then to
return."
Jesus then tells one version of the parable of the talents. Combine this with Luke 12:
But suppose the servant says to himself, ‘My master is taking a long
time in coming,’ and he then begins to beat the other servants, both
men and women, and to eat and drink and get drunk...
The clear implication is that human nature is impatient. We want a good king now, and when he doesn't come right away we stop believing and begin to act abominably. Or we act like those in John 6 who use violence to advance their religion:
After the people saw the sign Jesus performed, they began to say,
“Surely this is the Prophet who is to come into the world.” Jesus,
knowing that they intended to come and make him king by force,
withdrew again to a mountain by himself.
There is no inconsistency in scripture. The conflict is in our hearts. We cannot conceive how a good and all-powerful God could possibly have planned things to go the way they have. However, he announced his plan in advance and is following it. We like having free will, we just don't like God to have it, too.
Response to a comment about how God choosing to not exercise full authority could be compassionate and loving:
The second coming is presented as a final act. Once Christ returns, there is no further possibility of a person changing their allegiance, hence the saved are saved and the lost, forever lost. In this case, God's patience promotes compassion and is a sincere expression of his love. He is giving each person more time to decide. As an illustration, we have the story of Methuselah in Genesis. According to standard conservative chronology, Methuselah died in the year of the flood as the oldest man ever. Some maintain his name means "When he dies, it will come". His name was a prophecy of the coming destruction. If God was more just than loving, then Methuselah would die a young man, so that judgment (part of God's exercise of authority) could come swiftly. But if God was loving to a great extreme, then he would prolong the life of Methuselah to give the world more time to change. Since Methuselah did live longer than any other human has, this is a proof of God's patience and love, and also evidence that he has placed a limit on how long things will go on without him intervening.
Ideas about Kenosis (which is tied to Philippians 2) are very confusing. See http://kenosis.info/index.shtml for one person's critique.
Concerning Satan. As a commenter observed, my answer failed to mention Satan. Clearly my mind was monumentally distracted. Tackling Satan's relationship with the whole world is a huge topic. Addressing his relationship with a single person is more manageable. In the book of Job, Satan asks for permission to test Job and God grants it, within prescribed limits. Satan wants to destroy Job, while God wants to purify him and prove his faith. This principle is also described in Romans 8:28:
And we know that all things work together for good to them that love
God, to them who are the called according to his purpose.
It seems that it is possible for it to appear on the surface that Satan is in control, while underneath God's plans are being accomplished.
