It's better to emphasize biblical theology, partly because...

It's better to emphasize biblical theology, partly because there are fine Study Bibles already available that lean into systematic theology, and partly because biblical theology is particularly strong at helping readers see how the Bible hangs together in its own categories: that is, God in his infinite wisdom chose to give us his Word in the 66 canonical books, with all of their variations in theme, emphasis, vocabulary, literary form, and distinctive contributions across time.