He decided that first he must feed himself, before he goes about doing his "Christian Duty". This is so true. Here's a quote from Mueller...
The point is this: I saw more clearly than ever, that the first great and primary business to which I ought to attend every day was, to have my soul happy in the Lord. The first thing to be concerned about was not, how much I might serve the Lord, how I might glorify the Lord; but how I might get my soul into a happy state, and how my inner man might be nourished. For I might seek to set the truth before the unconverted, I might seek to benefit believers, I might seek to relieve the distressed, I might in other ways seek to behave myself as it becomes a child of God in this world; and yet, not being happy in the Lord, and not being nourished and strengthened in my inner man day by day, all this might not be attended to in a right spirit.
I have been reading an awful lot the past 2 months and I've found that preparing for preaching and teaching has come easier to me. I'm able more often to share from my "fullness" where previously I spent more time finding something to say.
I also have been applying something that I learned at Church Camp this past summer. Something that most everyone would see as obvious, but somehow I missed. I always get more from my scripture reading if I ask the Lord to speak to me from His word before I read it.
So I guess I would disagree with Mueller in this small detail - pray first that God would speak to you through His word, then read His word, then pray as your lead while reading His word.