Greetings.
I do not understand some of what you say. We have different vocabularies. I have no idea what you, personally, mean by a “Christian worldview” or whether you understand what Paul meant when he taught Christians should hold a worldview that “the whole world lies in darkness” (1 John 5: 19)
I also have not been able to figure out what you mean in your statement about denying the supernatural. Rather than trying to figure it out, I’ll just refer to two others of your statements above.
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Is insistence on the supernatural even biblical? Yes it is. Jesus was called the “Miracles worker” because He insisted the only proof He came from God was His working miracles "believe in the evidence of the miraculous works I have done, even if you don’t believe me. Then you will know and understand that the Father is in me, and I am in the Father.”(John 10:38) [New Living Translation]
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“…wonder if all Christians are committed to a supernatural God. Maybe they are but I don’t see why they should need to be…” Yes. The whole premise of Christianity is the miracle that a supernatural, spiritual God, made himself a human being by impregnating the virgin Miriam (Mary) in fulfillment of the prophecy of Isaiah 7: 14 “behold, a virgin shall conceive in the womb , and shall bring forth a son, and thou shalt call his name Emmanuel.” (Emmanuel meaning “God with us as Savior”; the name Yeshua also meaning savior; Yeshua being the Aramaic Spelling of Jesus, also Yehoshua, Joshuah) The old Testament prophecy of the savior/yeshua/Messiah coming as God made flesh/man is reiterated at John 1: 1-15.
Essentially, total faith and dependence on these verses is the beginning of acceptance of Christianity, It is the basis of the Creed. If a person does not believe this totally supernatural miracle, he may follow some of the teachings of Jesus as a philosophy, but he is not a Christian - by definition.
1 In the beginning was the Word, and the Word was with God, and the Word was God. 2 He was with God in the beginning. 3 Through him all things were made; without him nothing was made that has been made. 4 In him was life, and that life was the light of all mankind. 5 The light shines in the darkness, and the darkness has not overcome it.*** 6 There was a man sent from God whose name was John. 7 He came as a witness to testify concerning that light, so that through him all might believe. 8 He himself was not the light; he came only as a witness to the light. 9 The true light that gives light to everyone was coming into the world. 10 He was in the world, and though the world was made through him, the world did not recognize him. 11 He came to that which was his own, but his own did not receive him. 12 Yet to all who did receive him, to those who believed in his name, he gave the right to become children of God— 13 children born not of natural descent, nor of human decision or a husband’s will, but born of God.
14 The Word became flesh and made his dwelling among us. We have seen his glory, the glory of the one and only Son, who came from the Father, full of grace and truth. 15 (John testified concerning him. He cried out, saying, “This is the one I spoke about when I said, ‘He who comes after me has surpassed me because he was before me.’”)
*** [NOTE THIS IS THE SAME DARKNESS PAUL DESCRIBED IN SAYING THE WHOLE WORLD LIES IN DARKNESS. IN THE NEW TESTAMENT, THAT WHICH PERTAINS TO JESUS, HIS WORD AND PEOPLE IS LIGHT; EVERYTHING ELSE IS "OF THE WORLD, I.E. DARKNESS]
I don’t intend to be condescending, but we seem to have different vocabularies. To a Bible scholar who has been a “born-again- miracle-witnessing-Christian” for 50 years, there is no such thing as a Christian “worldview”. It is an oxymoron, like hot-ice. In Christianity “world” is synonymous with “darkness”, at least, but also the sin nature and corruption.
I guess “Christianity 101” could also be listed in the Foreign Languages department as well as Theology.