IF I were asked — What in a Christian minister is the most essential quality for securing success in winning souls for Christ? I should reply, “earnestness”: and if I were asked a second or a third time, I should not vary the answer, for personal observation drives me to the conclusion that, as a rule, real success is proportionate to the preacher’s earnestness. Both great men and little men succeed if they are thoroughly alive unto God, and fail if they are not so. We know men of eminence who have gained a high reputation, who attract large audiences, and obtain much admiration, who nevertheless are very low in the scale as soul-winners: for all they do in that direction they might as well have been lecturers on anatomy, or political orators. At the same time we have seen their compeers in ability so useful in the business of conversion that evidently their acquirements and gifts have been no hindrance to them, but the reverse; for by the intense and devout use of their powers, and by the anointing of the Holy Spirit, they have turned many to righteousness. We have seen brethren of very scanty abilities who have been terrible drags upon a church, and have proved as inefficient in their spheres as blind men in an observatory; but, on the other hand, men of equally small attainments are well known to us as mighty hunters before the Lord, by whose holy energy many hearts have been captured for the Savior. I delight in M’Cheyne’s remark, “It is not so much great talents that God blesses, as great likeness to Christ.” In many instances ministerial success is traceable almost entirely to an intense zeal, a consuming passion for souls, and an eager enthusiasm in the cause of God, and we believe that in every case, other things being equal, men prosper in the divine service in proportion as their hearts are blazing with holy love. “The God that answereth by fire, let him be God “; and the man who has the tongue of fire, let him be God’s minister.
~Charles Spurgeon~
Lectures to My Students (Pasadena, TX; Pilgrim Publications; 1990) Vol. 2; Lecture 8: Earnestness: Its Marring and Maintenance; p. 145.