I don't think it is entirely accurate that the distinction with Christianity is inward v outward. I actually quite emphatically indicated the difference was relationship. Christians have a living relationship with God. Not with the universe. Not with the creation but with the Creator. This is not the all or the ONE. It is the God who made the heavens and the earth. It is the God who himself gave his most precious possession, in order to demonstrate his love for his people.
The relationship between Buddhists glorifying creation and Christians glorifying the creator is only distinguished if you don't believe the universe created itself.
It is interesting that the Kingdom of God is inside us yet he is the creator of the universe, it reminded me of the idea of self-creation since the creator is within what it created.
I am aware that the scripture does also say God existed before he created the Earth, did he move into what he created after creating it, I do not know.
While it is true that Buddhism teaches an inward path, Christians don't ignore the inward. We do believe that this relationship with God, who is external to us, requires our hearts to be renewed as evidence of this relationship being reconciled. In other words, we say our hearts have been damaged - our sinful nature. This needs to be rectified - in order for us to be able to enjoy a proper relationship with God. like most things Christian, it is not just one way. There is inward, and outward. But more than that - we talk of the vertical and the horizontal. Once our relationship with God is sorted, then our relationships with others ought to follow as a natural consequence. Of course, many people dispute Christianity. It requires a deep humility which most if not all can achieve. It's more than just denying your human pleasures. Or needs. It is as Jesus put it - being born again. Starting again. This is truly a humiliating point.
I don't think the version was well interpreted from IlDiavolo: "The kingdom of God is within you", Luke 17: 20-21.
Once, on being asked by the Pharisees when the kingdom of God would come, Jesus replied, “The coming of the kingdom of God is not something that can be observed, nor will people say, ‘Here it is,’ or ‘There it is,’ because the kingdom of God is in your midst.”
Jesus taught that the kingdom of God was not a physical or temporal realm, but a spiritual and eternal reality. He said that the kingdom of God was not something that could be observed or located by human senses or signs, but something that was hidden and mysterious. He also said that the kingdom of God was not something that was exclusive or distant, but something that was inclusive and present. He said that the kingdom of God was in their midst, meaning that it was among them or within them. This means that Jesus was claiming to be the embodiment and manifestation of the kingdom of God. He was saying that by following him and his teachings, anyone could enter and experience the kingdom of God. He was also saying that by rejecting him and his teachings, anyone could miss and lose the kingdom of God.
I don't think it is within us or without us but penetrates and transcends us.