Faithful preachers are Bible men. When they answer questions about spiritual things Scripture begins to flow in the most natural manner. When they prepare sermons a repository of truth is available at a second’s notice. Like Bunyan, you merely need to poke ’em to see their Bibline blood.
Because assumptions are dangerous and I have no empirical data to render the brief encouragement moot, let me say this: every pastor must read his entire Bible at least once every year.
“New law!” you cry. No, that’s probably just the Worm talking. Psalm 119-esque delight in God’s word is at the heart my exhortation. The longevity of your ministry, in a very real sense, depends on your faithfulness to daily saturate your soul in the whole counsel. Sure, you can minister for a long time and disregard my exhortation, but I’d have no reason to expect those decades to be healthy.
Very early in pastoral ministry I read an old copy of the Doctor’s Preaching and Preachers and my ministry has never been the same. He said,
Read your bible systematically. The danger is to read at random, and that means that one tends to be reading only one’s favorite passages. In other words one fails to read the whole bible. I cannot emphasize too strongly the vital importance of reading the whole Bible. . . . One of the most fatal habits a preacher can ever fall into is to read his Bible simply in order to find texts for sermons. This is the real danger; it must be recognized and fought and resisted with all your might. Do not read the bible to find texts for sermons, read it because it is the food that God has provided for your soul, because it is the Word of God, because it is the means whereby you can get to know God. Read it because it is the bread of life, the manna provided for your soul’s nourishment and well-being. (183-184)
I found great wisdom in that advice, printed off M’Cheyne’s reading plan, and read the whole Bible systematically. The practice has become life and light for my soul. I bet it would do the same for you. Tolle lege!