'Kingdom of God' in the Bible

But if I cast out demons by the Spirit of God, then the kingdom of God has already overtaken you.

Again I say, it is easier for a camel to go through the eye of a needle than for a rich person to enter into the kingdom of God."

Which of the two did his father's will?" They said, "The first." Jesus said to them, "I tell you the truth, tax collectors and prostitutes will go ahead of you into the kingdom of God!

For this reason I tell you that the kingdom of God will be taken from you and given to a people who will produce its fruit.