What would our work loads look like if we put as much time actually doing the work as we do creating excuses for avoiding the work at hand? More importantly, what would our communities look like if we actually put as much time doing the Lord's work as we do creating excuses in sin? 

The calling of Moses provides insight into this common human inclination to argue, make excuses, and wrangle out of responsibility to the work the Lord provides.  When Moses provides a litany of excuses, the Lord provides the plan, the mouth, and the words, eliminating all excuses.  As Fr. Timothy Lowe suggests, the question is whether to submit, and the rest is details, trusting in the Lord's provision.