And yet, there's a different, somewhat controversial, reading that goes back to the King James Version:
Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you.
[I]t is occasionally argued that this phrase [entos hymōn] would be better translated "among you" or "in your midst," especially by those who instinctively prefer social to mystical construals of Jesus's teaching; but this is surely wrong. Entos really does properly mean "within" or "inside of," not "among," and Luke, in both his Gospel and the book of Acts, when meaning to say "among" or "amid," always uses either the phrase...[en meso] or just [en], followed by a dative plural; and his phrase for "in your midst" is [en meso hymōn] as in [Luke] 22:27...He uses entos only here, with a distinct and special import.
“For I will take you from the nations and gather you from all the countries, and will bring you into your own land. I will also sprinkle clean water on you, and you will be clean. I will cleanse you from all your impurities and all your idols. I will give you a new heart and put a new spirit within you; I will remove your heart of stone and give you a heart of flesh. I will place my Spirit within you and cause you to follow my statutes and carefully observe my ordinances. You will live in the land that I gave your ancestors; you will be my people, and I will be your God."
“This is the meaning of the parable: The seed is the word of God. The seed along the path are those who have heard and then the devil comes and takes away the word from their hearts, so that they may not believe and be saved. And the seed on the rock are those who, when they hear, receive the word with joy. Having no root, these believe for a while and fall away in a time of testing. As for the seed that fell among thorns, these are the ones who, when they have heard, go on their way and are choked with worries, riches, and pleasures of life, and produce no mature fruit. But the seed in the good ground—these are the ones who, having heard the word with an honest and good heart, hold on to it and by enduring, produce fruit." (Luke 8.11-15)
“A good tree doesn’t produce bad fruit; on the other hand, a bad tree doesn’t produce good fruit. For each tree is known by its own fruit. Figs aren’t gathered from thornbushes, or grapes picked from a bramble bush. A good person produces good out of the good stored up in his heart. An evil person produces evil out of the evil stored up in his heart, for his mouth speaks from the overflow of the heart. (Luke 6.43-45)