The biblical books all contain a theological perspective of their own. The Bible should best be imagined as a raucous faculty lounge where a bunch of theologians are sitting around arguing their points all at the same time.
Systematic theology, on the other hand, is a lecture hall where the lecturer is blathering on and the audience is sitting in silence and thinking each to himself how much better a job he could do of it if he were up there speaking instead.
I prefer, myself, the theologians of the Bible with their various emphases than the systematizer who is usually dull as dishwater and less inspiring.
Systematic theology is important, and even necessary (if only to keep systematic theologians gainfully employed and off the streets). It’s just not that interesting.