"Biblical theology" refers to something more precise than theology that is faithful to the Bible. It might be helpful to draw a contrast: at the risk of oversimplification, systematic theology tends to organize theology topically and with an eye cast on its contemporary relevance, while biblical theology tends to organize the same biblical material so that it is easier to see the distinctive contribution of each biblical book and human author, and to trace the trajectories of themes across the Bible so we see how the books of the Bible hold together.