Derek Thomas, my dear friend and colleague here at First Pres., Jackson, does a devotional each week for our Ministers' Meeting (which we have every Friday morning, in preparation for our Lord's Day duties and delights, and for prayer for the congregation, for needful sharing of pastoral situations, as well as for mutual encouragement). Derek's remarks are typically a feast of theology, history and pastoralia.

Last Friday, he exhorted us from the words of C.H. Spurgeon out of G. Holden Pike's Life and Work of Charles Haddon Spurgeon, (Edinburgh: Banner of Truth, 1991, vol. 2:352) to this effect -

"We need to muster a band of ministers who live only for Christ, and desire nothing but opportunities for promoting His glory – opportunities for spreading His truth – opportunities for winning by power those whom Jesus has redeemed by His precious blood. Men of one idea – these are they that shall do exploits in the camp of Israel."

You've got to read the whole thing though to get the proper effect. Here.