'Kingdom of God' in the Bible

But if I expel demons by the Spirit of God, then the kingdom of God has come upon you!

And again I say to you, it is easier [for] a camel to go through the eye of a needle than a rich person into the kingdom of God."

Which of the two did the will of [his] father?" They said, "The first." Jesus said to them, "Truly I say to you that the tax collectors and the prostitutes are going ahead of you into the kingdom of God!

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