If there are two types of reasons “why” you might do something (see previous post) can you focus on one of those types of “why” too much?

You can…

If you focus too heavily on the “functional why” (because we want this result, because we hope this will happen, because this will help that, because they will be able to…), what might happen then? Some might tell you that you’re just a short step from simple pragmatism – doing whatever works – the end justifies the means. That’s a pretty catastrophic conclusion to make. Remember, this isn’t abandoning “whys of purpose”, we’re just talking about having a focus on one over the other.
What is more likely to happen is that you’ll drift into traditionalism. You’ll do what worked once before, and you’ll just keep doing that, because it worked. You’ll be reluctant to alter the methods – methods that really were built on solid theological reasoning and good intentions. But methods that don’t work any more because you’re not willing to re-think the principles.

What about the other way?

If you focus too heavily on the “causal why” (because God is like this and that, because the gospel gives us this heart, because this is our identity in Christ…), what might happen then? Some might say you’ll be out of touch with reality… that you’ll just preach the truth and not care about tailoring it to the people who’re listening. Again, that’s pretty catastrophic. More likely, (if it’s simply an over-focus) you’ll take risks and try things out, without being so hung up about whether they work perfectly or not. You’ll try things out and watch them fail a few times before you land on something that does work.

There’s good reason to lean in that direction, heh?