No. I never said anything about finding doctrine in one verse.JonC you have just shown what I have been saying. We find Father, Son and Spirit in one verse so we can conclude that the Trinity is true. Deduction. And I agree we can show verses that God is One, and I can show verses where each are "persons". Again deduction for the Trinity. And that is what I have been saying re Adam spiritually dead. We are shown that separation from Christ is spiritually dead so logically separation form God by Adam would be spiritually dead. Sin separates us from God whether in OT or NT it results in the same thing. Do you see what I am saying?
Isa 59:2 But your iniquities have built barriers between you and your God, and your sins have hidden His face from you, so that He does not hear.
I do not need the words God is Sovereign to know that He is and I do not need the words Adam was spiritually dead to know that he was.
What I mean is doctrine, particularly doctrine we build on, should be in "what is written" rather than "derived" from Scripture.
An example is Jehovah Witness doctrine. It is certainly based on Scripture and derived from Scripture but it is a false teaching.
I can find verses actually stating the doctrine of the Trinity. But there are no verses stating that one can spiritually die, much less that Adam and Eve did.
What we do have is God's words that Adam would die (return to dust). The only biblical argument you can make is that Adam physically died (returned to dust).