First off, the unconstitutionality of such a declaration. I consider myself a liberal Christian, but the First Amendment is pretty clear that this is a no-no. A declaration like the one "encouraged" by H. Con. Res. 121 would fly in the face of the Establishment Clause of the First Amendment.
Secondly, there's the question of why. Is the Bible slipping? As far as I can tell, The Bible is still the best-selling book in the world. Why would the government need to intervene to promote it? And why only 2010? Are we not supposed to read the Bible in 2011?
Lastly, does Rep. McCotter realize that, even if points one and two were set aside, this bill would be pointless? This is a bill encouraging President Obama to do something he, a Constitutional law professor, would under no circumstances do. It's a meaningless gesture encouraging a meaningless gesture.
H/T: Jill Richardson