You use the unique terminology "the gospel of the water and the Spirit," which I have never heard before. From where did the phrase "the gospel of the water and the Spirit" come?
Thank you for the question.
The phrase "the gospel of the water and the Spirit" is originated from John 3:3-5 and 1 John 5:4-8.
Jesus answered Nicodemus, "Most assuredly, I say to you, unless one is born of water and the Spirit, he cannot enter the kingdom of God" (John 3:5). Therefore, we can define the term as "the only and true gospel that make its believers be born again and enter the Kingdom of God."
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I appreciate your truth seeking attitude and the Berean spirit. And you can get the brief explanation of the gospel of the water and the Spirit at below web page: