Your theology influences the words you choose? Wow! My theology is based upon God's words, not the other way around. You got it backwards Angela. If God's word goes against my theology, I better change my theology to match what God has said.
This right here is the danger of scholarship. Period.
You don't seem to understand what theology is. It translates as "the study of God." But the point is that theology is secondary. If John or Paul had written, "you can't lose your salvation, ever!" Then we could take that as straight theology. But God never did that.
While the gospels were written to people to share the truth of Christ, from his birth to the cross and resurrection, and Acts was the history of the early church, whereas the epistles were letter written by Paul, James, John and ? for Hebrews, none of them is theology. None of them dissect the text, integrate various verses/passages on the topic. Basically, theology is topical. Whereas the Bible itself teaches us, but not topically! Perhaps linear or parables, but not in topics. I have a KJV my mom gave me as a child. I know that it is not arranged into topical systematic theology, any more than any other Bible translation.
It's to bad your have convinced yourself that studying has to be one way, in one translation, and anything else is verboten! You are missing out on so many really deep things about The Father, the Son and the Spirit. Lots to learn about the Trinity, even though that word is not found directly in the Bible. Or eschatology, and so many other interesting things that you will never understand, because you are wrapped up in the nursery, refusing to try anything new or exciting to increase you love and knowledge of God, and how to walk with him.
Theology looks at patterns and draws conclusion about them. If something is only mentioned once, probably best not to make a doctrine out of it. The Cross, for example is mentioned 176 times. It probably needs a doctrine of the atonement, or adoption, or redemption, sacrifice or even reconciliation. These are all important motifs in forming a comprehensive doctrine or theological statement. And always remembering that we still have the possibility of being "wrong!" (Wrong, as in, failing to take something into account, etc. I'm not talking about sin, here, although heresy is sinful.)
So no, you do not pull your theology straight out of the Bible. The Bible must be the starting, middle and ending points. But other theologians have explored various theological doctrines. If you agree the doctrine is good, then you can build on it. Same with word studies. So much is known about individual Greek and Hebrew word studies. And there arevalso archaic and obsolete words from 400 years ago, that need to be changed, so everyone can understand why things were said like that was long ago, and that has changed.
Theology is not just take a verse or passage and saying "that's my theology!" Systematic theology is very interesting to study. I hope one day, John, you will permit yourself to read theology, and find out things that really enrich your life in a Christ!