A problem which plagues conservative theology especially is what I call 'yes, but' theology. A desire for 'balance', 'moderation' or even just a (generally good) desire to take into account the whole of Scripture results in the truths that Scripture presents being blunted, sometimes against each other. It works like this...
Person A: I'm not worried about future finances; God has promised to provide.
Person B: Yes, but we do need to be prudent and wise in our saving and make sure we provide for our families!
A: Jesus says I should lose my life for his sake.
B: Yes, but of course you ought not to do anything rash or foolhardy!
A: Human reason is utterly corrupted by the fall.
B: Yes, but of course humans are still in the image of God so we can still address them as rational people.
'Yes, but' theology evacuates the promises, threats and descriptions given by God of any force, and it does so in the name of thoroughness, systematization, and consistency. In reply, I say... No. When the Word of God is heard, it comes with force that crashes through every system. It may involve us in what seems to be a contradiction. It may cause us to pursue a course of action that looks like fanaticism. But it (he!) will not be tamed.