Exegesis (using sound biblical context of God’s unfolding plan) gives us certain theological ideas; Sin, Death, Love, Atonement, Creation, Humanity, Suffering, Eternity, Jesus, Life, Responsibility, Sovereignty, Power, Spirit, Law, Satan, Time, Guilt, Sex… these are all just topics that you can gather data on – from the bible – and summarise into an intelligent sentence. But that’s not ‘doing theology’ – yet. It’s just good, biblical (systematic) exegesis.

But take one of those ideas; any of them. imagine it as a locomotive steaming down the tracks… then take another one of those ideas; and imagine it on the track, steaming head-on towards the first…

Collide them… imagine the engines disintegrating into each other…

What form do they take? What becomes of them? What necessary truths must we hold as a result of believing A and B together?
That’s doing theology. And that’s where most of our early church fathers, and our reformed forebears did such great work. They showed what the bible said, and they argued the corollary was necessary.

So, go and do some theology.